Submitted:
09 July 2024
Posted:
10 July 2024
Read the latest preprint version here
Abstract

Keywords:
1. Introduction
1.1. Background and Motivation
1.2. Roadmap of the Paper
- Section 2: Theoretical Foundations - This Section delves into the limitations of the Lambda-CDM model and provides a historical context for developing cosmological concepts, including the discovery of dark matter and dark energy. It sets the stage for understanding why a new model like HTUM is necessary.
- Section 3: The Hyper-Torus Universe Model (HTUM) - Here, we present a detailed explanation of HTUM, including the mathematical formulation of the toroidal structure and its properties. We also discuss the challenges in visualizing a four-dimensional toroidal structure (4DTS).
- Section 4: Gravity and the Collapse of the Wave Function - This Section explores the wave function’s significance in quantum mechanics and discusses the measurement problem, highlighting how HTUM addresses these issues.
- Section 5: Beyond Division: Unifying Mathematics and Cosmology - This Section examines HTUM’s implications for the foundations of mathematics, discussing the nature of mathematical truth and the role of intuition.
- Section 6: The Singularity and Quantum Entanglement - We explain quantum entanglement, its implications for singularity, and the challenges in experimentally verifying these concepts.
- Section 7: The Event Horizon and Probability - This Section focuses on the mathematical formulation of the event horizon and its properties, discussing HTUM’s implications for our understanding of black holes.
- Section 8: The Universe Observing Itself - We explore the mechanism of self-observation and its relationship to the collapse of the wave function, addressing the experimental challenges involved.
- Section 9: Consciousness and the Universe - We discuss the relationship between consciousness and quantum measurement, incorporating this relationship into HTUM and addressing experimental challenges.
- Section 10: Relationship to Other Theories - This Section compares HTUM with other theories of quantum gravity and discusses the potential for integration with different theoretical frameworks.
- Section 11: Testable Predictions and Empirical Validation - We discuss the challenges of testing HTUM’s predictions experimentally and provide a roadmap for future experimental work and collaborations.
- Section 12: Implications for the Nature of Reality - This Section delves into the philosophical implications of HTUM, particularly concerning the nature of time and the mind-matter relationship.
- Section 13: Conclusion - The final Section discusses HTUM’s potential impact on cosmology and its relationship to other disciplines, emphasizing the importance of interdisciplinary research and collaboration.
1.3. Significance of HTUM in Cosmology
- Dark Matter and Dark Energy: By integrating these elusive components into a unified framework, HTUM could provide new insights into their nature and role in the cosmos [34,35,36]. Understanding the distribution and properties of dark matter and dark energy within the toroidal structure may illuminate their origins and how they influence the universe’s evolution.
- Quantum Mechanics and Gravity: HTUM’s approach to the interplay between quantum mechanics and gravity could lead to a deeper understanding of these fundamental forces [37,38,39]. The toroidal geometry of HTUM may provide a natural framework for unifying these theories, as the compact nature of the torus could potentially resolve the incompatibilities between quantum mechanics and general relativity.
- Nature of Time: HTUM’s perspective on time as a continuous and interconnected process challenges traditional views and opens new avenues for exploration [23,40,41]. The cyclical nature of the model suggests that time may be an emergent property arising from the toroidal structure and the interactions between matter and energy rather than a fundamental aspect of reality.
- Philosophical Implications: The model’s integration of consciousness as a fundamental aspect of the universe invites a reevaluation of the mind-matter relationship and the nature of reality [42,43,44]. HTUM’s emphasis on the interconnectedness of space, time, and consciousness may provide a framework for addressing long-standing questions in the philosophy of mind, such as the hard problem of consciousness and the nature of subjective experience.
- Cosmological Principle: HTUM’s toroidal geometry challenges the cosmological principle, which assumes that the universe is homogeneous and isotropic on large scales [45,46]. The model’s compact topology implies that the universe may have a preferred direction or orientation, which could lead to observable anisotropies in the cosmic microwave background or the distribution of galaxies. Testing the predictions of HTUM against the cosmological principle may provide crucial insights into the model’s validity and the fundamental assumptions underlying modern cosmology.
- Anthropic Principle: The cyclical nature of HTUM and the potential for multiple universes within the toroidal structure may have implications for the anthropic principle, which attempts to explain the apparent fine-tuning of the universe for the emergence of life and consciousness [47,48,49]. The model’s framework may provide a natural explanation for the existence of a universe with the necessary conditions for the development of complex structures and intelligent life without relying on the controversial notion of a multiverse or the fine-tuning of initial conditions.
2. Theoretical Foundations
2.1. The Lambda-CDM Model and Cosmic Evolution Scenarios
2.2. Historical Context
2.3. Limitations of the Lambda-CDM Model
- Singularity Problem: The theory begins with a singularity, a point of infinite density and temperature, which current physics cannot adequately describe [58].
- Flatness Problem: The observed spatial flatness of the universe requires fine-tuning initial conditions, which seems improbable [60].
- Dark Matter and Dark Energy: While the Lambda-CDM model incorporates dark matter and dark energy as critical components, it does not fully explain their fundamental nature or origin [55,61]. The model describes their effects but leaves questions about their underlying physics and how they evolved throughout cosmic history.
2.4. Addressing Limitations with HTUM
- Singularity and Causality: HTUM redefines the singularity not as a point of infinite density but as a phase transition within the toroidal structure, potentially resolving the singularity problem [64,65]. In HTUM, the singularity is replaced by a smooth transition between cycles, maintaining the continuity of space-time and causality.
- Causal Connectivity: The toroidal geometry of HTUM allows for a natural explanation of the horizon problem, as regions of the universe can remain in causal contact through the torus’s topology [7,62]. The compact nature of the torus ensures that light and information can propagate around the universe, maintaining causal connectivity and explaining the observed uniformity of the CMB.
- Spatial Flatness: The cyclical nature of HTUM provides a mechanism for maintaining spatial flatness without requiring fine-tuning [15,63]. As the universe undergoes repeated cycles of expansion and contraction, any initial curvature is smoothed out over time, leading to the observed flatness of space. This concept is explored in more detail in Section 2.5, where we discuss how HTUM’s toroidal structure naturally addresses the flatness problem.
- Integration of Dark Matter and Dark Energy: HTUM incorporates dark matter and dark energy as fundamental components driving the universe’s cyclical behavior and structural evolution [15,63]. Dark matter plays a crucial role in the formation and stability of the toroidal structure, while dark energy drives the expansion and contraction phases of the cosmic cycle.
2.5. HTUM and the Flatness Problem
2.6. Implications and Future Directions
- Unification of Quantum Mechanics and Gravity: The toroidal geometry of HTUM may provide a framework for reconciling quantum mechanics and general relativity, as the model naturally incorporates aspects of both theories [7,62]. The smooth transition between cycles in HTUM could potentially resolve the incompatibility between these two fundamental theories, leading to a more unified theory of quantum gravity.
- Experimental Tests: The predictions of HTUM can be tested through various experimental methods, such as precision measurements of the CMB, gravitational wave observations, and studies of large-scale structure [7,62]. Future missions like the James Webb Space Telescope (JWST) and the Large Synoptic Survey Telescope (LSST) could provide crucial data to validate or refine the model.
- Philosophical Implications: HTUM challenges our understanding of the nature of reality, time, and the role of consciousness in the universe. The model’s cyclical nature and the interconnectedness of space, time, and matter raise profound questions about causality, determinism, free will, and the role of consciousness in the universe [7,62]. These philosophical implications invite interdisciplinary collaborations between physicists, philosophers, and other scholars to explore the deeper meaning of our existence.
- Technological Advancements: The insights gained from HTUM could lead to technological advancements in fields such as energy production, space exploration, and computing [7,62]. Understanding the universe’s fundamental principles may inspire novel approaches to harnessing energy, developing more efficient propulsion systems, and creating advanced computational algorithms.
- Educational and Public Outreach: HTUM provides an exciting opportunity to engage the public in the wonders of cosmology and the scientific process. The model’s intuitive and visually appealing nature makes it accessible to a broad audience, fostering interest in science, technology, engineering, and mathematics (STEM) fields. Educational programs, popular science books, and multimedia content based on HTUM could inspire the next generation of scientists and encourage public support for scientific research.
2.7. Conclusion
3. The Hyper-Torus Universe Model (HTUM)
3.1. Conceptual Framework
3.2. Toroidal Structure of the Universe
3.3. Mathematical Formulation of the Toroidal Structure
3.3.1. Embedding in Higher-Dimensional Space
3.3.2. Metric and Topology
3.3.3. Homology and Cohomology
3.3.4. Visualization Techniques
3.3.5. Implications for HTUM
3.4. Advanced Topological Concepts for the Toroidal Structure
3.4.1. Fiber Bundle Representation
- is the base space (our 4-dimensional torus)
- is the structure group (representing the phase of the wave function)
- is the projection map
3.4.2. Differential Forms on the 4-Torus
3.4.3. Connection and Curvature
3.4.4. Implications for HTUM
- It offers a mathematically rigorous framework for describing the geometry and topology of the 4-dimensional toroidal universe.
- It provides natural ways to incorporate quantum mechanical concepts (through the fiber bundle structure) and field theories (through differential forms and connections) into the model.
- It suggests new avenues for theoretical predictions and potential observational tests based on the topological and geometrical properties of the 4-torus.
- It connects HTUM to ongoing research in quantum gravity and topological quantum field theories, as explored in recent work by Gielen [91].
3.5. TQFT and the Hyper-Torus
3.6. Challenges in Visualizing and Conceptualizing a 4DTS
- Dimensional Reduction: By studying lower-dimensional analogs, such as the three-dimensional torus () or the two-dimensional torus (), we can gain insights into the properties and behavior of the four-dimensional torus. These lower-dimensional models serve as stepping stones for understanding higher-dimensional structures [99].
- Mathematical Visualization Tools: Advanced mathematical software and visualization tools can help create representations of four-dimensional objects [100]. These tools can project higher-dimensional structures into three-dimensional space, allowing us to explore their properties interactively.
- Analogies and Metaphors: Using analogies and metaphors can make abstract concepts more relatable [98]. For example, comparing the four-dimensional torus to a three-dimensional torus with an additional dimension of time or another spatial dimension can help bridge the gap in understanding.
- Educational Resources: Developing educational resources, such as interactive simulations, videos, and detailed diagrams, can help teach and learn about higher-dimensional structures [99]. These resources can provide step-by-step explanations and visual aids to enhance comprehension.
3.7. The Nature of Dark Energy and Dark Matter in HTUM
3.7.1. Introduction
3.7.2. The Quantum Lake: An Analogy for Dark Energy and Dark Matter Dynamics
3.7.3. Nonlinear Schrödinger Equation
- is the wave function.
- ℏ is the reduced Planck’s constant.
- m is the particle mass.
- is the potential.
- g is a constant characterizing the strength of the nonlinearity.
3.8. Nonlinear Probabilistic Nature of Dark Matter and Dark Energy
- is the wave function
- is the potential
- is the nonlinear term representing self-interaction
- and are nonlinear functionals representing the effects of dark matter and dark energy, respectively
3.8.1. Higher-Dimensional Interactions
- represents a field in the higher-dimensional space.
- x includes coordinates from the extra dimensions.
3.8.2. Nonlinear Quantum Field Theory
- is the kinetic term.
- m is the mass of the scalar field.
- and g are constants characterizing the strength of the nonlinear interactions.
- represents the contribution from higher-dimensional interactions.
3.8.3. Wave Function Collapse and Gravity
- is a coupling constant.
- represents the gravitational field.
3.8.4. Integrating Nonlinear Probabilistic Phenomena
3.8.5. Density Matrix and Energy-Momentum Tensor
3.8.6. Einstein’s Field Equations with Nonlinear Contributions
3.8.7. Conceptual Consistency
3.8.8. Summary
- Extending the Schrödinger equation to include nonlinear terms and higher-dimensional interactions [125].
- Representing the density matrix and energy-momentum tensor to account for wave function collapse and nonlinear contributions [115].
- Modifying Einstein’s field equations to include these nonlinear contributions ensures that the emergence of gravitational effects aligns with HTUM [122].
3.8.9. Extended Framework and Comparisons
Comparison with Current Dark Matter Models
- Wave Function Localization: In HTUM, dark matter is viewed as a nonlinear phenomenon that contributes to the localization of the universal wave function. This contrasts with particle models by suggesting that dark matter is an intrinsic property of the quantum universe rather than a distinct particle species.
- Dynamic Distribution: Unlike static dark matter haloes in standard models, HTUM suggests a dynamic distribution that evolves with the universe’s wave function. This could potentially explain observed anomalies in galactic rotation curves that challenge conventional dark matter models [127].
- Quantum Entanglement: HTUM proposes that dark matter’s effects are deeply connected to quantum entanglement on a cosmic scale. This could provide a new perspective on the "small scale crisis" in cosmology, where observations of dwarf galaxies seem to conflict with simulations based on cold dark matter models [128].
Relation to Current Dark Energy Models
- Quantum Superposition Maintenance: In HTUM, dark energy is conceptualized as a nonlinear probabilistic phenomenon that helps maintain quantum superposition states. This contrasts with the static energy density of the cosmological constant model or the slowly varying scalar fields in quintessence models [129].
- Wave Function Collapse Dynamics: HTUM suggests that dark energy plays a crucial role in the dynamics of wave function collapse on a cosmic scale. This could potentially address the coincidence problem in cosmology, explaining why dark matter and dark energy densities are of the same order of magnitude in the present epoch [130].
- Toroidal Structure Influence: The model proposes that dark energy’s behavior is intimately linked to the toroidal structure of the universe. This geometric connection could provide a new perspective on the flatness problem and the apparent accelerating expansion of the universe [7].
Mathematical Framework for Nonlinear Probabilistic Phenomena
Observational Consequences
- Galactic Dynamics: The nonlinear nature of dark matter in HTUM could lead to unique signatures in galactic rotation curves and galaxy cluster dynamics that differ from predictions of standard dark matter models [131].
- Cosmic Web Structure: The interplay between dark matter’s wave function localization and dark energy’s superposition maintenance could result in distinctive patterns in the cosmic web structure, potentially observable through large-scale structure surveys [132].
- Cosmic Microwave Background: The quantum nature of dark energy in HTUM might lead to specific imprints on the CMB power spectrum, particularly at large angular scales [133].
Experimental Approaches
- Advanced Gravitational Lensing Studies: Precise measurements of gravitational lensing effects could reveal the nonlinear and quantum nature of dark matter distribution predicted by HTUM [134].
- Quantum Experiments: While challenging, experiments exploring quantum effects at larger scales could provide insights into the quantum nature of dark energy proposed by HTUM [137].
3.9. Addressing the Nature of the Singularity and Time
3.10. Experimental Implications and Testable Predictions
3.10.1. Cosmic Microwave Background (CMB) Anisotropies
3.10.2. Large-Scale Structure and Cosmic Topology
3.10.3. Gravitational Wave Signatures
3.10.4. Dark Matter and Dark Energy Interactions
3.10.5. Quantum Gravity and Higher-Dimensional Signatures
3.10.6. Cosmological Parameter Constraints
4. The Relationship Between Quantum Mechanics and Gravity
4.1. Integrating Quantum Mechanics and Gravity
4.2. Enhanced Quantum Gravity Formulation
4.2.1. Loop Quantum Gravity Approach
4.2.2. String Theory Elements
4.2.3. HTUM Unified Approach
4.2.4. Wave Function Collapse and Gravity
4.3. The Wave Function in Quantum Mechanics
4.4. Wave Function Collapse and Observation
Key Points:
- Wave function collapse describes the transition from quantum superposition to definite states.
- Observation or measurement triggers the collapse process.
- HTUM posits that this collapse is an active participant in shaping the universe.
- The famous Schrödinger’s cat thought experiment illustrates the concept of superposition and collapse.
4.5. Emergence of Classical States
4.6. Nonlinear Wave Equation for Dark Energy
4.7. Dark Matter and Wave Function Localization
4.8. Dark Energy and Quantum Superposition
4.9. Nonlinear Probabilistic Nature of Dark Matter and Dark Energy
4.10. Gravitational Effects from Wave Function Collapse
4.11. Implications for the Unified Interaction at the Center of the Torus
Key Points:
- HTUM suggests that wave function collapse induces gravitational effects.
- The energy-momentum tensor in general relativity is linked to the collapsed wave function.
- Dark matter and dark energy contribute to this process in distinct ways.
- This mechanism provides a potential bridge between quantum mechanics and general relativity.
4.12. Observation-Induced Wave Function Collapse and the Emergence of Gravity
4.13. Implications for Quantum Gravity
4.14. Future Research Directions
- Mathematical Formulation: Develop a rigorous mathematical framework that describes the toroidal structure and its properties, including the role of gravity in wave function collapse [115].
- Experimental Verification: Designing experiments to test HTUM’s predictions, particularly those related to the interplay between gravity and quantum mechanics [189].
- Interdisciplinary Collaboration: Encouraging collaboration between physicists, cosmologists, and mathematicians to explore HTUM’s implications and refine its theoretical foundations [172].
4.15. Conclusion
4.16. Mathematical Framework for Bridging Quantum Mechanics and Gravity
4.16.1. Wave Function in HTUM
4.16.2. Modified Schrödinger Equation
4.16.3. Gravitational Hamiltonian
4.16.4. Wave Function Collapse and Emergence of Classical Spacetime
4.16.5. Einstein Field Equations in HTUM
4.16.6. Quantum Gravitational Effects
4.16.7. Toroidal Structure and Quantum Gravity
4.17. Implications for Mathematical Understanding
5. Beyond Division: Unifying Mathematics and Cosmology
5.1. Conceptual Framework
5.2. Unified Mathematical Operations
5.2.1. Implications for Mathematical Theory
5.3. Topology and Geometry of the Toroidal Universe
5.3.1. Toroidal Structure
5.3.2. Mathematical Formulations
5.4. Quantum Superposition and Hilbert Space
5.4.1. Singularity and Superposition
5.4.2. Implications for Quantum Mechanics
5.5. Category Theoretic Formulation of Unified Mathematical Operations
- Objects are sets of numbers (e.g., real numbers , complex numbers )
- Morphisms are operations between these sets
- Identity: for any object A in
- Associativity:
- Commutativity:
5.6. Abstract Algebraic Structure
- is an abelian group under addition (when )
- is a monoid under multiplication (when )
- Distributivity holds:
- There exists a continuous family of operations parameterized by
5.7. Lie Algebra Representation
5.8. Differential Geometric Interpretation
5.9. Topos Theoretic Perspective
- Objects are sheaves over the space of mathematical operations
- Morphisms are natural transformations between these sheaves
5.10. Practical Applications of Unified Mathematical Operations
5.10.1. Holistic Problem-Solving
5.10.2. Applications in Physics and Engineering
- Quantum Computing: The unified approach could enhance algorithms that rely on the superposition and entanglement of quantum states, leading to more efficient problem-solving techniques in quantum computing [184].
- Adaptive Materials Engineering: Understanding the interconnectedness of operations could lead to developing materials that dynamically adapt their properties in response to environmental changes, improving their performance and durability [206].
- AI Algorithm Design: The holistic perspective could inspire new algorithms that better mimic the interconnected processes found in nature, leading to more robust and adaptive artificial intelligence systems [207].
5.10.3. Future Directions
5.11. Implications for the Foundations of Mathematics
5.11.1. Revaluation of Mathematical Axioms
5.11.2. Extending Existing Frameworks
5.11.3. Philosophical Implications
5.11.4. Emphasizing Empirical Evidence and Rigorous Testing
5.12. Implications for the Nature of Mathematical Truth and Intuition
5.12.1. Nature of Mathematical Truth
5.12.2. Role of Intuition in Mathematical Discovery
5.13. Relationship Between Mathematics and the Physical World
5.13.1. Mathematical Descriptions of Physical Phenomena
5.13.2. Bridging the Gap Between Abstract Mathematics and Physical Reality
5.14. From Theory to Empirical Testing
5.15. Connecting Unified Mathematics to HTUM Framework
5.16. Concept of Unified Mathematical Operations
5.17. Broader Cosmological Implications
5.18. Practical Applications and Case Studies
- Quantum Computing: The interconnected nature of mathematical operations can be leveraged to develop algorithms that run efficiently on quantum computers. By treating addition, subtraction, multiplication, and division as unified processes, we can create more efficient algorithms that solve problems intractable for classical computers [221]. This approach could lead to cryptography, optimization, and material science breakthroughs [222].
- Adaptive Materials: Inspired by HTUM’s perspective on continuous transformation, researchers can engineer materials that change their properties in real time. For instance, materials that adapt to environmental conditions, such as temperature or pressure, could be developed using the principles of unified mathematical operations [223]. This could lead to aerospace, construction, and medical device innovations [224].
- Energy Systems: Designing energy systems that mimic natural processes’ efficient, seamless energy transformation can lead to more sustainable solutions. By applying HTUM’s principles, we can develop energy systems that optimize the conversion and storage of energy, reducing waste and improving efficiency [225]. This approach could revolutionize renewable energy technologies like solar panels and batteries [226].
- Artificial Intelligence: Developing AI algorithms that dynamically adapt their problem-solving strategies, reflecting their interconnected and continuous nature of mathematical operations, can enhance machine learning and data analysis. This approach can lead to more robust and adaptable AI systems that handle complex, dynamic environments, such as autonomous vehicles and smart cities [227,228].
5.18.1. Detailed Case Study: The Nature of Dark Energy
5.19. Addressing Potential Criticisms and Future Research Directions
- Formulating precise mathematical definitions and equations that describe the wave function collapse process and its impact on the energy-momentum tensor [115].
- Integrating these equations into Einstein’s field equations to describe how actualized quantum states give rise to gravitational effects [37].
5.20. Conclusion
5.21. From Quantum Gravity to the Singularity: A Unified Perspective
6. The Singularity and Quantum Entanglement
6.1. Introduction to the Singularity
6.2. Quantum Entanglement within the Singularity
6.2.1. Mathematical Formulation of Quantum Entanglement
6.3. Entanglement Entropy in the Hyper-Torus
6.3.1. Implications for the Singularity
6.4. Self-Observation and Wave Function Collapse
6.4.1. Mechanism of Self-Observation
6.5. Actualization of Classical States
6.5.1. Emergence of Gravitational Effects
6.6. Implications for the Cosmic Microwave Background (CMB)
6.7. Experimental Verification
6.7.1. Challenges
6.7.2. Addressing the Challenges
6.8. Conclusion
6.9. Future Research Directions
7. The Event Horizon and Probability
7.1. Mathematical Formulation of the Event Horizon
7.2. The Event Horizon as a Nexus Boundary
7.3. Wave Function Collapse at the Event Horizon
7.4. Emergence of Gravitational Effects
7.5. Dynamic Interplay between Gravity and Dark Energy
7.6. Implications of HTUM for Black Holes and Event Horizons
- Unified Framework: By integrating the principles of HTUM, we can develop a more comprehensive framework that unifies general relativity and quantum mechanics [146]. This could lead to a deeper understanding of the nature of event horizons and the behavior of black holes.
- Dynamic Event Horizons: HTUM suggests that event horizons are dynamic and interconnected with the rest of the universe [172]. This perspective could lead to new models that describe the evolution of black holes and their interactions with their surroundings.
- Experimental Validation: To validate this theoretical framework, experimental tests could involve studying quantum systems under gravitational fields or searching for signatures of the quantum-to-classical transition in cosmological observations [191]. Observations of black hole behavior, gravitational waves, and Hawking radiation could provide empirical evidence for HTUM’s predictions [158].
7.7. Conclusion
8. The Universe Observing Itself
8.1. Concept of Self-Observation
8.2. Mechanism of Self-Observation and Wave Function Collapse
- Quantum Superposition of the Universe: Initially, the universe exists in a superposition of all possible states [197]. This state encompasses all potential configurations of matter, energy, and information, representing many possibilities.
- Intrinsic Observation Mechanism: The universe possesses an inherent mechanism that allows it to observe itself [187]. This mechanism is not confined to conscious beings but includes all interactions and processes within the universe, such as particle collisions, gravitational interactions, and electromagnetic forces. Each interaction can be seen as a form of measurement or observation [256].
- Collapse through Self-Observation: When any interaction or process occurs within the universe, it acts as an observation, causing the wave function to collapse [115] (as detailed in Section 4.4). This self-observation is continuous and pervasive, leading to the actualization of specific probabilities inherent in the singularity and resulting in the manifestation of the observable universe. The collapse of the wave function through self-observation ensures that the universe evolves from a superposition of states to a definite state, thereby shaping its structure and evolution [146].
8.3. Stochastic Model of Universe Self-Observation
8.3.1. Basic Stochastic Schrödinger Equation
8.3.2. Incorporating Dark Matter and Dark Energy
8.3.3. Refined Lindblad Operators
8.3.4. Master Equation for Density Matrix Evolution
8.3.5. Implications and Observables
- Topological quantum phase transitions related to the toroidal structure [262].
- Nonlinear quantum effects in the distribution of dark matter and dark energy [263].
- Decoherence patterns in cosmic microwave background radiation [38].
- Quantum gravitational effects in the universe’s large-scale structure [29].
8.4. Emergence of Gravitational Effects
8.5. Dark Matter and Dark Energy Contributions
8.6. Examples and Analogies
- The Water Cycle: Just as the water cycle relies on the integrated functioning of its components to sustain itself, the universe’s self-observation can be seen as a continuous cycle of interactions [216]. Each interaction, like evaporation or precipitation in the water cycle, contributes to the system’s overall state, leading to the collapse of the wave function.
- A Mirror Reflecting Itself: Imagine a mirror reflecting another mirror. The reflections continue infinitely, influencing the next [264]. Similarly, the universe’s self-observation involves a continuous loop of interactions, where each event influences the overall state, leading to the collapse of the wave function.
- A Feedback Loop in a System: In a feedback loop, a system’s output is fed back into the system as input, influencing future outputs [265]. The universe’s self-observation can be likened to a feedback loop, where each interaction feeds back into the system, continuously shaping its state and leading to the collapse of the wave function.
- Quantum Measurement on a Cosmic Scale: We can compare the universe’s self-observation to the process of quantum measurement writ large [187]. Just as measuring a quantum particle affects its state, every interaction within the universe can be seen as a form of measurement that affects the universe’s overall state, contributing to the ongoing process of wave function collapse.
- Cellular Automaton Model: Drawing an analogy to cellular automata, we can envision the universe as a vast grid where the state of each "cell" is determined by the states of its neighboring cells [266]. This creates a vast network of interconnected observations, where each part of the universe observes and is observed by its surroundings.
- Neural Network Comparison: The universe’s self-observation process can be likened to a complex neural network [267]. Each node in this cosmic network processes information from its connections, contributes to the overall state, and influences future states, similar to neurons in a brain.
- Holographic Principle Illustration: The holographic principle provides another useful analogy [268]. Just as a hologram contains information about the whole in each of its parts, we can conceive of every part of the universe as containing information about and observing the whole.
- Cosmic Ecosystem: We might compare the universe to a vast ecosystem where each component affects and is affected by the system as a whole [269]. This constant interaction and mutual influence can be seen as a form of universal self-observation.
8.7. Addressing Criticisms
- Empirical Evidence: One major criticism is the lack of empirical evidence for the universe’s self-observation and its impact on wave function collapse [270]. Demonstrating this hypothesis requires advanced observational technologies and methodologies that may not currently exist.
- Philosophical Questions: The concept raises questions about the nature of observation and reality [271]. It challenges the traditional distinction between observer and observed, suggesting a more interconnected and participatory universe. Critics may argue this blurs the line between physical processes and conscious observation.
- Compatibility with Existing Theories: Critics may argue that self-observation is incompatible with established quantum mechanical and cosmological theories [40]. Addressing this concern requires carefully examining how this perspective can be reconciled with or extend existing theories.
- Theoretical Support: HTUM draws on existing theories such as quantum decoherence, relational quantum mechanics, and objective collapse models to support the idea of self-observation [185,272,273]. These theories provide a framework for understanding how interactions within the universe can lead to wave function collapse.
- Quantum Decoherence: Quantum decoherence is a process by which a quantum system loses its coherence due to environmental interactions [186]. In the context of HTUM, decoherence can be seen as a mechanism contributing to the wave function’s collapse through the universe’s self-observation. As the universe interacts with itself, the coherence of the quantum states is gradually lost, leading to the emergence of classical behavior.
- Relational Quantum Mechanics: Relational quantum mechanics is an approach that emphasizes the relative nature of quantum states [273]. According to this view, the properties of a quantum system are defined by its relations with other systems. In HTUM, the universe’s self-observation can be understood as a network of relations between its constituents, giving rise to the collapse of the wave function and the actualization of specific probabilities.
- Objective Collapse Models: Objective collapse models propose that wave function collapse is an objective, spontaneous process that occurs independently of observers [115,185]. These models suggest that specific physical mechanisms, such as gravitational effects or spontaneous localization, trigger the collapse. HTUM’s concept of self-observation can be seen as a form of objective collapse, where the universe’s intrinsic properties and interactions lead to the collapse of its wave function.
- Interdisciplinary Collaboration: HTUM encourages collaboration between physicists, cosmologists, philosophers, and other researchers to explore the implications of self-observation [274]. This multidisciplinary approach can address philosophical questions and integrate the concept into existing theoretical frameworks.
- Empirical Testing: While direct empirical evidence may be challenging, HTUM emphasizes the importance of rigorous testing and observational data [191]. By making specific predictions and comparing them with alternative theories, researchers can assess the validity of the self-observation hypothesis.
8.8. Experimental Verification and Challenges
- Technological Limitations: Current observational technologies may need to be advanced enough to detect the subtle effects of self-observation on wave function collapse [275]. Future advancements in quantum measurement techniques and high-precision instruments will be crucial for testing HTUM’s predictions.
- Complexity of Interactions: The universe’s self-observation involves many interactions at different scales, from subatomic particles to cosmic structures [276]. Isolating and measuring the impact of these interactions on wave function collapse requires sophisticated experimental designs and data analysis methods.
- Indirect Evidence: Given the difficulty of direct observation, researchers may need to rely on indirect evidence to support the self-observation hypothesis [191]. This could involve identifying unique patterns or anomalies in cosmological data that align with HTUM predictions, such as variations in the cosmic microwave background (CMB) or gravitational wave signals.
- Interdisciplinary Approaches: Addressing the experimental challenges will require collaboration across multiple disciplines, including physics, cosmology, engineering, and computer science [274]. Developing new experimental methodologies and analytical tools will be essential for testing HTUM’s concepts.
- Quantum Interferometry: Quantum interferometry is a technique that exploits the wave nature of matter to make exact measurements [277]. Advanced quantum interferometers, such as atom interferometers or superconducting quantum interference devices (SQUIDs), could be used to detect subtle effects of self-observation on wave function collapse.
- Quantum Sensing: Quantum sensing involves using quantum systems, such as entangled particles or quantum dots, to measure physical quantities with unprecedented sensitivity [278]. These techniques could be employed to probe the effects of self-observation on the universe’s quantum states.
- High-Precision Cosmological Observations: Advancements in cosmological observations, such as the detection of gravitational waves by the Laser Interferometer Gravitational-Wave Observatory (LIGO) or the mapping of the cosmic microwave background (CMB) by satellites like Planck, could provide indirect evidence for HTUM’s predictions [149,158]. These observations may reveal unique patterns or anomalies that align with the consequences of self-observation.
8.9. Quantum-to-Classical Transition
8.10. Conclusion
8.11. From Self-Observation to Philosophical Inquiry
9. Consciousness and the Universe
9.1. Role of Consciousness in HTUM
9.2. Consciousness and Quantum Measurement
9.3. Free Will and Determinism
9.4. Mind-Matter Relationship
- Measurement and Isolation: Isolating consciousness’s influence from other variables in a quantum system is challenging. Traditional scientific methods rely on objective measurements, whereas consciousness is inherently subjective [42].
- Technological Limitations: Current technology may need to be advanced enough to detect or measure the subtle influences of consciousness on quantum systems. Developing new methodologies and instruments is essential [283].
- Philosophical and Theoretical Obstacles: Integrating consciousness into physical theories challenges existing paradigms and may face resistance from the scientific community. Bridging the gap between subjective experience and objective measurement requires innovative theoretical frameworks [296].
- Interdisciplinary Research: Combining insights from quantum physics, neuroscience, and philosophy can provide a more comprehensive understanding of consciousness and its role in the universe [76].
- Advanced Experimental Designs: Developing experiments that minimize external influences and focus on the observer’s role can help isolate the effects of consciousness. Quantum entanglement and delayed-choice experiments are potential areas of exploration [297].
- Theoretical Development: Creating robust theoretical models incorporating consciousness into quantum mechanics can guide experimental efforts and provide testable predictions [211].
- Technological Innovation: Developing new technologies, such as susceptible detectors and quantum computing, can enhance our ability to study the interplay between consciousness and quantum systems [184].
9.5. Consciousness, Wave Function Collapse, and the Emergence of Gravity
9.6. Consciousness-Induced Wave Function Collapse in HTUM
9.6.1. Quantum State and Consciousness Operator
9.6.2. Consciousness-Mediated Collapse
9.6.3. Probability of Collapse
9.6.4. Continuous Collapse Model
9.6.5. Emergence of Gravitational Effects
9.6.6. Consciousness and Dark Energy Interaction
10. Relationship to Other Theories
10.1. Comparison with Loop Quantum Gravity and String Theory
- Compatibility: HTUM and LQG emphasize the importance of geometry in understanding the universe. The toroidal structure in HTUM could be mapped onto the spin networks of LQG, suggesting a possible geometric correspondence [39].
- Divergence: While LQG focuses on quantizing spacetime, HTUM incorporates the roles of dark matter and dark energy in a cyclical universe. This broader scope may offer new insights into the dynamics of the universe that LQG does not address [192].
- Compatibility: String theory’s multidimensional aspect aligns with HTUM’s toroidal structure, which can be visualized as existing in higher-dimensional space. Both theories also address the unification of forces, with HTUM focusing on the interplay between gravity, dark matter, and dark energy [176].
- Divergence: String Theory’s reliance on higher dimensions and mathematical complexity differ from HTUM’s more geometric and cyclical approach. HTUM’s emphasis on the singularity and the nature of time offers a distinct perspective that complements String Theory’s focus on fundamental particles and forces [32].
10.2. Comparison with Other Theories of Quantum Gravity
- Compatibility: HTUM and CDT emphasize the geometric nature of spacetime. The toroidal structure of HTUM could be represented within the simplicial framework of CDT [302].
- Divergence: CDT focuses on the discrete evolution of spacetime, while HTUM incorporates a continuous, cyclical model involving dark matter and dark energy. This difference in approach may offer complementary insights into the nature of spacetime [303].
- Compatibility: The mathematical structures of Non-Commutative Geometry could describe the complex topology of HTUM’s toroidal universe [304].
- Divergence: Non-commutative geometry primarily addresses the algebraic properties of spacetime, whereas HTUM focuses on a geometric and cyclical interpretation. Integrating these perspectives could lead to a richer understanding of the universe’s fundamental nature [305].
10.3. Compatibility with the Multiverse Hypothesis
- Compatibility: HTUM’s cyclical nature can be seen as representing a series of interconnected cosmic states within a larger framework. Each cycle in the toroidal structure could potentially represent a different universe configuration, with variations in physical laws and constants [15]. This perspective shares some similarities with multiverse concepts, although HTUM proposes these variations occur within a single, cyclical universe rather than across separate universes.
- Divergence: While the Multiverse Hypothesis often relies on probabilistic interpretations and the Many-Worlds Interpretation of Quantum Mechanics, HTUM focuses on a singular, interconnected toroidal structure. This difference in focus highlights HTUM’s unique contributions to our understanding of cosmic cycles and the nature of time [306]. HTUM proposes a deterministic yet dynamic universe where changes occur through continuous transformation rather than branching into separate realities.
10.4. Many-Worlds Interpretation and HTUM
- Compatibility: HTUM’s emphasis on quantum mechanics and the role of consciousness in actualizing reality aligns with the MWI’s view of multiple outcomes. The toroidal structure of HTUM could encompass these various branches, with each cycle representing a different outcome [307].
- Divergence: HTUM integrates the roles of dark matter and dark energy in shaping the universe, which is not a primary focus of MWI. Additionally, HTUM’s cyclical nature contrasts with the branching structure of MWI, offering a different perspective on the universe’s evolution [308].
10.5. Potential Integration with Other Theories
- Compatibility: HTUM’s toroidal structure could be visualized as a higher-dimensional space where the Holographic Principle applies. This could provide a framework for understanding how information is encoded and preserved in the universe [309].
- Potential Integration: Integrating the Holographic Principle with HTUM could offer new insights into the nature of information and entropy in a cyclical universe, potentially leading to a deeper understanding of black holes and cosmological horizons [310].
- Compatibility: The higher-dimensional aspects of HTUM’s toroidal structure could be related to the AdS space, and its cyclical nature provides a novel interpretation of the boundary conditions in the CFT [312].
- Potential Integration: Exploring the AdS/CFT Correspondence within the context of HTUM could lead to a unified description of gravity and quantum mechanics, offering new avenues for research in quantum gravity and cosmology [313].
10.6. Comparison with Existing Toroidal Universe Models
10.6.1. Euclidean 3-Torus Model
- Similarities: Both HTUM and the 3-torus model propose a finite yet unbounded universe.
- Differences: HTUM incorporates a 4D structure and explicitly integrates time as the fourth dimension, while the 3-torus model is primarily spatial.
10.6.2. Poincaré Dodecahedral Space Model
- Similarities: Both HTUM and PDS challenge the notion of an infinite, flat universe.
- Differences: HTUM’s 4D toroidal structure offers a different geometric interpretation than PDS’s dodecahedral structure.
11. Testable Predictions and Empirical Validation
11.1. Predictions for Cosmic Microwave Background (CMB) Radiation
- Anisotropies and Patterns: HTUM posits that the universe’s toroidal geometry will result in specific CMB patterns. These patterns may differ from those predicted by the standard cosmological model, offering a unique signature of HTUM [7].
- Temperature Fluctuations: The interaction between dark matter, dark energy, and the singularity could lead to unique temperature fluctuations in the CMB. These fluctuations might be cyclical or periodic, reflecting the toroidal structure [148].
11.2. Gravitational Waves and Their Signatures
- Waveform Signatures: The model predicts that gravitational waves originating from events near the singularity or within the toroidal structure will have distinct waveform signatures, which may differ from those predicted by general relativity alone [314].
- Frequency Spectrum: The interaction between dark matter, dark energy, and wave function collapse could result in a unique frequency spectrum for gravitational waves. This spectrum might include specific peaks or troughs corresponding to the toroidal geometry [315].
11.3. Patterns in Dark Matter and Dark Energy Distribution
- Spatial Distribution: Dark matter and dark energy should exhibit specific spatial distributions influenced by the toroidal geometry. These distributions may form patterns or structures the standard cosmological model does not predict [316].
- Temporal Variations: The cyclical nature of HTUM suggests that the density and distribution of dark matter and dark energy may vary over time, reflecting the universe’s dynamic behavior [15].
11.4. Potential Experiments and Observations
- High-Precision CMB Measurements: Future missions with higher precision and resolution can provide more detailed data on CMB anisotropies and temperature fluctuations, allowing for a more rigorous test of HTUM predictions [317].
- Advanced Gravitational Wave Detectors: Next-generation gravitational wave detectors with increased sensitivity and broader frequency ranges can detect and analyze more subtle waveform signatures, providing critical data for HTUM validation [318].
- Dark Matter and Dark Energy Mapping: Enhanced mapping techniques and larger survey volumes can improve our understanding of dark matter and dark energy distributions, offering more opportunities to test HTUM predictions [319].
- Quantum Experiments: Laboratory experiments exploring wave function collapse and quantum entanglement in controlled settings can provide insights into HTUM’s quantum mechanical aspects [320].
11.5. Challenges in Experimental Testing
- Sensitivity and Precision: Many predicted signatures, such as specific anisotropies in the CMB or unique gravitational waveforms, require extremely high sensitivity and precision in measurements. Current technology may still need to be improved to detect these subtle signals [321].
- Data Interpretation: Distinguishing HTUM-specific patterns from noise or other cosmological phenomena can be complex. Advanced data analysis techniques and robust statistical methods will be necessary to ensure accurate interpretation [322].
- Resource Allocation: Large-scale experiments and observations, such as those involving next-generation gravitational wave detectors or extensive dark matter surveys, require significant funding and resources. Securing these resources can be a major hurdle [323].
- Technological Advancements: Developing more sensitive and precise instruments will be crucial. Collaborative efforts between institutions and countries can accelerate technological progress [324].
- Interdisciplinary Collaboration: Bringing together experts from various fields, including cosmology, quantum mechanics, and data science, can enhance the design and analysis of experiments. Multidisciplinary teams can develop innovative solutions to complex problems [325].
- Incremental Validation: Starting with smaller, more manageable experiments can provide initial validation and build a case for larger-scale studies. Incremental progress can help secure funding and support for more ambitious projects [326].
11.6. Roadmap for Future Experimental Work and Collaborations
-
Initial Feasibility Studies:
-
Technological Development:
-
Pilot Experiments:
-
Large-Scale Observations:
-
Data Analysis and Interpretation:
-
Interdisciplinary Collaboration:
-
Continuous Refinement:
12. Implications for the Nature of Reality
12.1. Redefining Reality: A Timeless Singularity
12.2. The Role of Consciousness in Shaping Reality
12.2.1. Philosophical Implications
12.2.2. The Nature of Time
12.3. Mathematical Implications
12.4. Information Theory and Entropy
12.5. Implications for the Origin and Ultimate Fate of the Universe
12.6. The Hard Problem of Consciousness
12.7. Panpsychism and HTUM
12.8. Free Will and Determinism
12.9. The Observer Effect and the Nature of Reality
12.10. Emergent Properties and Complexity
12.11. The Mind-Body Problem
12.12. Implications for the Philosophy of Science
12.12.1. The Origin of the Universe
12.12.2. The Ultimate Fate of the Universe
13. Conclusion
13.1. Summary of Key Points
- HTUM proposes a 4DTS that offers new insights into the universe’s geometry and topology [195].
- It provides a unified approach to mathematical operations, enhancing our understanding of interconnected processes in physics and engineering [217].
- Empirical validation and technological advancements are crucial for testing HTUM’s predictions and refining its models [191].
- Interdisciplinary collaboration is essential for overcoming the challenges associated with HTUM and advancing our knowledge [208].
13.2. Implications for Cosmology and Beyond
- It offers new perspectives on fundamental cosmological phenomena, such as dark energy and the universe’s accelerated expansion [104].
- HTUM’s philosophical implications, such as its perspective on the nature of consciousness and its role in shaping reality, can contribute to long-standing philosophical debates and encourage interdisciplinary dialogue between scientists and philosophers [76].
13.3. The Power of Interdisciplinary Research and Collaboration
- Collaborative efforts between institutions and countries can accelerate technological progress and enhance the design and analysis of experiments [372].
- Interdisciplinary teams, including cosmology, quantum mechanics, data science, and philosophy experts, can develop innovative solutions to complex problems [231].
- Interdisciplinary collaboration, particularly between scientists and philosophers, is crucial for fully exploring HTUM’s philosophical implications and their potential impact on our understanding of the universe and our place within it [373].
13.4. Future Research Directions
- Technological Development: Invest in advanced instruments and detectors with higher sensitivity and precision [158].
- Pilot Experiments: Design and conduct pilot experiments to test specific predictions of HTUM, such as CMB anisotropies or gravitational wave signatures [149].
- Large-Scale Observations: Secure funding and resources for large-scale observations, such as next-generation gravitational wave detectors [374].
- Philosophical Implications: Further examine the philosophical implications of HTUM, as discussed in Section 12.2.1, and explore their connections to other areas of intellectual inquiry, such as epistemology and the philosophy of science [375].
13.5. Embracing the Journey of Discovery
Appendix A. Detailed Mathematical Treatment of the Conceptual Framework
Appendix A.1. Wave Function and Quantum Superposition
Appendix A.2. Probability Density and Born’s Rule
Appendix A.3. Wave Function Collapse and Measurement
Appendix A.4. Density Matrix Formalism
Appendix A.5. Energy-Momentum Tensor in General Relativity
Appendix A.6. Einstein’s Field Equations and the Emergence of Gravity
Appendix A.7. Dark Matter and Dark Energy in HTUM Framework
Appendix A.8. Quantum Decoherence and the Quantum-to-Classical Transition in HTUM
Appendix A.8.1. Density Matrix Evolution
Appendix A.8.2. Decoherence in the Toroidal Structure
Appendix A.8.3. Pointer States and Einselection
Appendix A.8.4. Quantum Darwinism and HTUM
Appendix A.8.5. Decoherence and Wave Function Collapse in HTUM
Appendix A.8.6. Emergence of Spacetime and Gravity
Appendix A.8.7. Experimental Implications
Appendix A.9. Experimental Tests and Observational Signatures
Appendix A.10. Mathematical Formulation of Unified Approach to Mathematical Operations
- Addition: with
- Subtraction: with
- Multiplication: with and
- Division: with and
Appendix A.11. Conclusion
References
- Bull, P.; others. Beyond ΛCDM: Problems, solutions, and the road ahead. Physics of the Dark Universe 2016, 12, 56–99. [Google Scholar] [CrossRef]
- Amendola, L.; Tsujikawa, S. Dark energy: theory and observations; Cambridge University Press, 2013.
- Peebles, P.; Ratra, B. The cosmological constant and dark energy. Reviews of Modern Physics 2003, 75, 559. [Google Scholar] [CrossRef]
- Bennett, C.L.; others. First-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: Preliminary maps and basic results. The Astrophysical Journal Supplement Series 2003, 148, 1. [Google Scholar] [CrossRef]
- Collaboration, P.; others. Planck 2018 results. VI. Cosmological parameters. Astronomy & Astrophysics 2020, 641, A6. [Google Scholar]
- Tegmark, M.; others. Three-dimensional power spectrum of galaxies from the Sloan Digital Sky Survey. The Astrophysical Journal 2004, 606, 702. [Google Scholar] [CrossRef]
- Luminet, J.P.; Weeks, J.R.; Riazuelo, A.; Lehoucq, R.; Uzan, J.P. Topology of the universe: theory and observation. Nature 2003, 425, 593–595. [Google Scholar] [CrossRef] [PubMed]
- Roukema, B.F.; Lew, B.; Cechowska, M.; Marecki, A.; Bajtlik, S. A hint of Poincar’e dodecahedral topology in the WMAP first year sky map. Astronomy & Astrophysics 2004, 423, 821–831. [Google Scholar]
- Aslanyan, G.; Manohar, A.V.; Yadav, A.P. The topology and size of the Universe from CMB temperature and polarization data. Journal of Cosmology and Astroparticle Physics 2013, 2013, 009. [Google Scholar] [CrossRef]
- Aurich, R.; Janzer, H.S.; Lustig, S.; Steiner, F. Do we live in a small Universe? Classical and Quantum Gravity 2008, 25, 125006. [Google Scholar] [CrossRef]
- Ellis, G.F.; MacCallum, M.A. A class of homogeneous cosmological models. Communications in Mathematical Physics 1969, 12, 108–141. [Google Scholar] [CrossRef]
- Barrow, J.D.; Juszkiewicz, R.; Sonoda, D.H. Universal rotation: how large can it be? Monthly Notices of the Royal Astronomical Society 1985, 213, 917–943. [Google Scholar] [CrossRef]
- Hartle, J.B.; Hawking, S.W. Wave function of the Universe. Physical Review D 1983, 28, 2960. [Google Scholar] [CrossRef]
- Khoury, J.; Ovrut, B.A.; Steinhardt, P.J.; Turok, N. The ekpyrotic universe: Colliding branes and the origin of the hot big bang. Physical Review D 2001, 64, 123522. [Google Scholar] [CrossRef]
- Steinhardt, P.J.; Turok, N. Cosmic evolution in a cyclic universe. Physical Review D 2002, 65, 126003. [Google Scholar] [CrossRef]
- Guth, A.H. Inflationary universe: A possible solution to the horizon and flatness problems. Physical Review D 1981, 23, 347. [Google Scholar] [CrossRef]
- Linde, A.D. A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems. Physics Letters B 1982, 108, 389–393. [Google Scholar] [CrossRef]
- Hawking, S.W.; Ellis, G. The large scale structure of space-time; Vol. 1, Cambridge University Press, 1973.
- Spergel, D.N.; others. First-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: Determination of cosmological parameters. The Astrophysical Journal Supplement Series 2003, 148, 175. [Google Scholar] [CrossRef]
- Rees, M. Dark matter: Introduction. Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 1999, 357, 29–35. [Google Scholar]
- Ellis, G.F. The arrow of time and the nature of spacetime. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 2013, 44, 242–262. [Google Scholar] [CrossRef]
- Rovelli, C. Time in quantum gravity: an hypothesis. Physical Review D 1991, 43, 442. [Google Scholar] [CrossRef] [PubMed]
- Barbour, J. The end of time: The next revolution in physics; Oxford University Press,1999.
- Isham, C. Canonical quantum gravity and the problem of time. In Integrable systems, quantum groups, and quantum field theories; Springer, Dordrecht, 1993; pp. 157–287.
- Rovelli, C. Loop quantum gravity. Living Reviews in Relativity 1998, 1, 1–75. [Google Scholar] [CrossRef]
- Smolin, L. Atoms of space and time. Scientific American 2004, 290, 66–75. [Google Scholar] [CrossRef]
- Hawking, S.W. Particle creation by black holes. Communications in Mathematical Physics 1975, 43, 199–220. [Google Scholar] [CrossRef]
- Susskind, L. String theory and the principles of black hole complementarity. Physical Review Letters 1993, 71, 2367. [Google Scholar] [CrossRef] [PubMed]
- Penrose, R. Cycles of time: an extraordinary new view of the universe; Random House, 2010.
- Smolin, L. The life of the cosmos; Oxford University Press, 1997.
- Tegmark, M. Our mathematical universe: My quest for the ultimate nature of reality; Vintage, 2014.
- Greene, B. The elegant universe: Superstrings, hidden dimensions, and the quest for the ultimate theory; WW Norton & Company, 1999.
- McCammon, C.R. 4D Hyper-Torus Simulation. https://www.htum.org, 2024. Accessed: 2024-06-01.
- Bertone, G.; Hooper, D.; Silk, J. Particle dark matter: Evidence, candidates and constraints. Physics Reports 2005, 405, 279–390. [Google Scholar] [CrossRef]
- Frieman, J.A.; Turner, M.S.; Huterer, D. Dark energy and the accelerating universe. Annual Review of Astronomy and Astrophysics 2008, 46, 385–432. [Google Scholar] [CrossRef]
- Feng, J.L. Dark matter candidates from particle physics and methods of detection. Annual Review of Astronomy and Astrophysics 2010, 48, 495–545. [Google Scholar] [CrossRef]
- Rovelli, C. Quantum gravity; Cambridge University Press, 2004.
- Kiefer, C. Quantum gravity; Vol. 136, International Series of Monographson Physics, Oxford University Press, 2007.
- Ashtekar, A.; Lewandowski, J. Background independent quantum gravity: A status report. Classical and Quantum Gravity 2004, 21, R53. [Google Scholar] [CrossRef]
- Smolin, L. Time reborn: From the crisisin physics to the future of the universe; Houghton Mifflin Harcourt, 2013.
- Rovelli, C. The order of time; Riverhead Books, 2018.
- Chalmers, D.J. Facing up to the problem of consciousness. Journal of Consciousness Studies 1995, 2, 200–219. [Google Scholar]
- Nagel, T. What is it like to be a bat? The Philosophical Review 1974, 83, 435–450. [Google Scholar] [CrossRef]
- Tononi, G.; Koch, C. Consciousness: here, there and everywhere? Philosophical Transactions of the Royal Society B: Biological Sciences 2015, 370, 20140167. [Google Scholar] [CrossRef]
- Ellis, G.F. Cosmological principle. Quarterly Journal of the Royal Astronomical Society 1975, 16, 245. [Google Scholar]
- Maartens, R. Is the Universe homogeneous? Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 2011, 369, 5115–5137. [Google Scholar] [CrossRef] [PubMed]
- Barrow, J.D.; Tipler, F.J. The anthropic cosmological principle; Oxford University Press, 1986.
- Weinberg, S. Anthropic bound on the cosmological constant. Physical Review Letters 1987, 59, 2607. [Google Scholar] [CrossRef]
- Carr, B. Universe or multiverse?; Cambridge University Press, 2007.
- Hubble, E. A relation between distance and radial velocity among extra-galactic nebulae. Proceedings of the National Academy of Sciences 1929, 15, 168–173. [Google Scholar] [CrossRef] [PubMed]
- Alpher, R.A.; Bethe, H.; Gamow, G. The origin of chemical elements. Physical Review 1948, 73, 803. [Google Scholar] [CrossRef]
- Penzias, A.A.; Wilson, R.W. A measurement of excess antenna temperature at 4080 Mc/s. The Astrophysical Journal 1965, 142, 419–421. [Google Scholar] [CrossRef]
- Lemaître, G. The beginning of the world from the point of view of quantum theory. Nature 1931, 127, 706. [Google Scholar] [CrossRef]
- Tolman, R.C. Relativity, thermodynamics and cosmology; Clarendon Press: Oxford, 1934. [Google Scholar]
- Riess, A.G.; others. Observational evidence from supernovae for an accelerating universe and a cosmological constant. The Astronomical Journal 1998, 116, 1009. [Google Scholar] [CrossRef]
- Perlmutter, S.; others. Measurements of Ω and Λ from 42 high-redshift supernovae. The Astrophysical Journal 1999, 517, 565. [Google Scholar] [CrossRef]
- Zwicky, F. Die rotverschiebung von extragalaktischen nebeln. Helvetica Physica Acta 1933, 6, 110–127. [Google Scholar]
- Hawking, S.W.; Penrose, R. The singularities of gravitational collapse and cosmology. Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences 1970, 314, 529–548. [Google Scholar]
- Misner, C.W. The isotropy of the universe. The Astrophysical Journal 1968, 151, 431. [Google Scholar] [CrossRef]
- Dicke, R.H.; Peebles, P. The flatness problem in cosmology. General Relativity: An Einstein Centenary Survey 1979, pp. 504–517.
- Trimble, V. Existence and nature of dark matter in the universe. Annual Review of Astronomy and Astrophysics 1987, 25, 425–472. [Google Scholar] [CrossRef]
- Levin, J. Topology and the cosmic microwave background. Physics Reports 2004, 365, 251–333. [Google Scholar] [CrossRef]
- Barenboim, G.; Lykken, J. Inflation and cyclic models. Physics Letters B 2010, 692, 107–111. [Google Scholar]
- Novello, M.; Bergliaffa, S.E.P. Bouncing cosmologies. Physics Reports 2008, 463, 127–213. [Google Scholar] [CrossRef]
- Poplawski, N.J. Nonsingular, big-bounce cosmology from spinor-torsion coupling. Physical Review D 2012, 85, 107502. [Google Scholar] [CrossRef]
- Aghanim, N.; Akrami, Y.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; Ballardini, M.; Banday, A.; Barreiro, R.; Bartolo, N.; Basak, S.; others. Planck 2018 results-vi. cosmological parameters. Astronomy & Astrophysics 2020, 641, A6. [Google Scholar]
- Weeks, J.R. The shape of space. Pure and Applied Mathematics Quarterly 2001, 2, 1–17. [Google Scholar]
- Thurston, W.P. Three-dimensional geometry and topology; Princeton University Press, 1997.
- Chern, S.s. A simple intrinsic proof of the Gauss-Bonnet formula for closed Riemannian manifolds. Annals of Mathematics 1944, pp. 747–752.
- Nakahara, M. Geometry, topology and physics, 2nd ed.; CRC Press: Boca Raton, 2003. [Google Scholar]
- Di Tucci, A.; Gerke, P.; Horstmann, M.; Schäfer, B.M. Cosmic crystallography as a probe of the topology of the Universe. Monthly Notices of the Royal Astronomical Society 2021, 506, 5679–5692. [Google Scholar]
- Steinhardt, P.J.; Turok, N. A cyclic model of the universe. Science 2002, 296, 1436–1439. [Google Scholar] [CrossRef] [PubMed]
- Ijjas, A.; Steinhardt, P.J. The anamorphic universe. Journal of Cosmology and Astroparticle Physics 2019, 2019, 001. [Google Scholar] [CrossRef]
- Lehners, J.L.; Wilson-Ewing, E. Bouncing cosmologies from quantum gravity. Journal of Cosmology and Astroparticle Physics 2021, 2021, 038. [Google Scholar]
- Vazza, F.; Banfi, S.; Gheller, C.; Rajpurohit, K. Probing the topology of the cosmic web with radio telescopes. Monthly Notices of the Royal Astronomical Society 2021, 500, 5350–5368. [Google Scholar] [CrossRef]
- Penrose, R. The emperor’s new mind: Concerning computers, minds, and the laws of physics; Oxford University Press, 1999.
- Hameroff, S.; Penrose, R. Consciousness in the universe: A review of the ’Orch OR’ theory. Physics of Life Reviews 2014, 11, 39–78. [Google Scholar] [CrossRef] [PubMed]
- Nakahara, M. Geometry, topology and physics; CRC press, 2018.
- Weeks, J.R. The shape of space; CRC Press, 2001.
- Banchoff, T.F. Beyond the third dimension; Scientific American Library, 1996.
- Hatcher, A. Algebraic topology; Cambridge University Press,2002.
- Hanson, A.J. Visualizing quaternions. ACM SIGGRAPH 2004 Course Notes 2004, pp. 1–87.
- Hanson, A.J.; Ma, H. Constrained optimal framing of curves and surfaces using quaternion gauss maps. Proceedings of Visualization’94 1994, pp. 375–382.
- Cornish, N.J.; Spergel, D.N.; Starkman, G.D. Circles in the sky: finding topology with the microwave background radiation. Classical and Quantum Gravity 1998, 15, 2657. [Google Scholar] [CrossRef]
- Aharonov, Y.; Bergmann, P.G.; Lebowitz, J.L. Quantum topology: a new kind of topological quantum number. Physical Review B 1964, 134, B1410. [Google Scholar] [CrossRef]
- Witten, E. Dimensional reduction of superstring models. Physics Letters B 1985, 155, 151–155. [Google Scholar] [CrossRef]
- Tu, L.W. Differential geometry: connections, curvature, and characteristic classes; Springer, 2017. doi:10.1007/978-3-319-55084-8. [CrossRef]
- Stoica, O.C. Fiber bundle description of quantum entanglement. Quantum Reports 2020, 2, 230–239. [Google Scholar]
- Frankel, T. The geometry of physics: anintroduction; Cambridge University Press, 2011. [CrossRef]
- Baez, J.C.; Wise, D.K. Differential forms and electromagnetic field theory. Journal of Physics A: Mathematical and Theoretical 2020, 53, 354001. [Google Scholar]
- Gielen, S. Topological quantum cosmology. Classical and Quantum Gravity 2021, 38, 155004. [Google Scholar]
- Atiyah, M. Topological quantum field theories. Publications Mathématiques de l’IHÉS 1988, 68, 175–186. [Google Scholar] [CrossRef]
- Lurie, J. On the classification of topological field theories. Current developments in mathematics 2009, 2008, 129–280. [Google Scholar] [CrossRef]
- Witten, E. Quantum field theory and the Jones polynomial. Communications in Mathematical Physics 1989, 121, 351–399. [Google Scholar] [CrossRef]
- Freed, D.S.; Hopkins, M.J.; Lurie, J.; Teleman, C. Topological quantum field theories from compact Lie groups. In A celebration of the mathematical legacy of Raoul Bott; American Mathematical Society, 2010; pp. 367–403.
- Crane, L.; Yetter, D.N. A categorical construction of 4D topological quantum field theories. In Quantum topology; World Scientific, 1993; pp. 120–130.
- Kapustin, A.; Saulina, N. Topological boundary conditions in abelian Chern-Simons theory. Nuclear Physics B 2011, 845, 393–435. [Google Scholar] [CrossRef]
- Abbott, E.A. Flatland: Aromance of many dimensions; Princeton University Press, 2015.
- Manning, H.; Stern, M.; Abramovich, S. Visualizing mathematics with 3D printing. Journal of Mathematics Education at Teachers College 2020, 11, 21–29. [Google Scholar]
- Hanson, A.J. Quaternions androtations; Princeton University Press, 2014.
- Zlatev, I.; Wang, L.; Steinhardt, P.J. Quintessence, cosmic coincidence, and the cosmological constant. Physical Review Letters 1999, 82, 896–899. [Google Scholar] [CrossRef]
- Sahni, V.; Starobinsky, A. The case for a positive cosmological Λ-term. International Journal of Modern Physics D 2000, 9, 373–443. [Google Scholar] [CrossRef]
- Hu, W.; Dodelson, S. Cosmological constraints from the cosmic microwave background. Annual Review of Astronomy and Astrophysics 2007, 45, 233–273. [Google Scholar]
- Copeland, E.J.; Sami, M.; Tsujikawa, S. Dynamics of dark energy. International Journal of Modern Physics D 2006, 15, 1753–1935. [Google Scholar] [CrossRef]
- Sulem, C.; Sulem, P.L. The nonlinear Schrödinger equation: self-focusing and wave collapse; Springer Science & Business Media, 1999.
- Birrell, N.D.; Davies, P.C.W. Quantum fields in curved space; Cambridge University Press, 1982.
- Tsujikawa, S. Quintessence: a review. Classical and Quantum Gravity 2013, 30, 214003. [Google Scholar] [CrossRef]
- Clifton, T.; Ferreira, P.G.; Padilla, A.; Skordis, C. Modified gravity and cosmology. Physics Reports 2012, 513, 1–189. [Google Scholar]
- Arkani-Hamed, N.; Dimopoulos, S.; Dvali, G. The hierarchy problem and new dimensions at a millimeter. Physics Letters B 1998, 429, 263–272. [Google Scholar] [CrossRef]
- Randall, L.; Sundrum, R. Large mass hierarchy from a small extra dimension. Physical Review Letters 1999, 83, 3370. [Google Scholar] [CrossRef]
- Dvali, G.; Gabadadze, G.; Shifman, M. Self-tuning flat domain walls in 5D gravity and string theory. Physical Review D 2000, 62, 044020. [Google Scholar]
- Maartens, R.; Koyama, K. Brane-world gravity. Living Reviews in Relativity 2010, 13, 1–124. [Google Scholar] [CrossRef] [PubMed]
- Weinberg, S. The cosmological constant problem. Reviews of Modern Physics 1989, 61, 1–23. [Google Scholar] [CrossRef]
- Khoury, J.; Weltman, A. Chameleon fields: Awaiting surprises for tests of gravity in space. Physical Review Letters 2004, 93, 171104. [Google Scholar] [CrossRef] [PubMed]
- Penrose, R. On gravity’s role in quantum state reduction. General relativity and gravitation 1996, 28, 581–600. [Google Scholar] [CrossRef]
- Di’osi, L. Models for universal reduction of macroscopic quantum fluctuations. Physical Review A 1989, 40, 1165. [Google Scholar] [CrossRef] [PubMed]
- Bassi, A.; Ghirardi, G. Dynamical reduction models. Physics Reports 2003, 379, 257–426. [Google Scholar] [CrossRef]
- Gasbarri, G.; Toroš, M.; Donadi, S.; Bassi, A. Gravity induced wave function collapse. Physical Review D 2017, 96, 104013. [Google Scholar] [CrossRef]
- Hu, W.; Sugiyama, N. Quantum fluctuations in the early universe and the microwave background. The Astrophysical Journal 1995, 444, 489–506. [Google Scholar] [CrossRef]
- Carlip, S. Is quantum gravity necessary? Classical and Quantum Gravity 2008, 25, 154010. [Google Scholar] [CrossRef]
- Nielsen, M.A.; Chuang, I.L. Quantum computation and quantum information; Cambridge university press, 2010.
- Weinberg, S. Cosmology; Oxford university press, 2008.
- Misner, C.W.; Thorne, K.S.; Wheeler, J.A. Gravitation; Princeton University Press, 1973.
- Penrose, R. The road to reality: A complete guide to the laws of the universe; Random House, 2014.
- Doebner, H.D.; Goldin, G.A. On a class of nonlinear Schrödinger equations with nonlinear dissipation. Journal of Physics A: Mathematical and General 1995, 27, 1771. [Google Scholar] [CrossRef]
- Bertone, G.; Tait, T.M. New Horizons in the Search for Dark Matter. Nature 2018, 562, 51–56. [Google Scholar] [CrossRef] [PubMed]
- McGaugh, S.S. A tale of two paradigms: the mutual incommensurability of ΛCDM and MOND. Canadian Journal of Physics 2015, 93, 250–259. [Google Scholar] [CrossRef]
- Bullock, J.S.; Boylan-Kolchin, M. Small-scale challenges to the ΛCDM paradigm. Annual Review of Astronomy and Astrophysics 2017, 55, 343–387. [Google Scholar] [CrossRef]
- Caldwell, R.R.; Kamionkowski, M. Cosmological constant and dark energy. Annual Review of Nuclear and Particle Science 2009, 59, 397–429. [Google Scholar] [CrossRef]
- Velten, H.E.; vom Marttens, R.F.; Zimdahl, W. Aspects of the cosmological "coincidence problem". The European Physical Journal C 2014, 74, 1–8. [Google Scholar] [CrossRef]
- Famaey, B.; McGaugh, S.S. Modified Newtonian dynamics (MOND): Observational phenomenology and relativistic extensions. Living Reviews in Relativity 2012, 15, 10. [Google Scholar] [CrossRef] [PubMed]
- Libeskind, N.I.; van de Weygaert, R.; Cautun, M.; Falck, B.; Tempel, E.; Abel, T.; Alpaslan, M.; Aragón-Calvo, M.A.; Forero-Romero, J.E.; Gonzalez, R.; others. Tracing the cosmic web. Monthly Notices of the Royal Astronomical Society 2018, 473, 1195–1217. [Google Scholar] [CrossRef]
- Bennett, C.; Larson, D.; Weiland, J.; Jarosik, N.; Hinshaw, G.; Odegard, N.; Smith, K.; Hill, R.; Gold, B.; Halpern, M.; others. Nine-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: final maps and results. The Astrophysical Journal Supplement Series 2013, 208, 20. [Google Scholar] [CrossRef]
- Troxel, M.; MacCrann, N.; Zuntz, J.; Eifler, T.; Krause, E.; Dodelson, S.; Gruen, D.; Blazek, J.; Friedrich, O.; Samuroff, S.; others. Dark energy survey year 1 results: cosmological constraints from cosmic shear. Physical Review D 2018, 98, 043528. [Google Scholar] [CrossRef]
- Ivezić, Ž.; Kahn, S.M.; Tyson, J.A.; Abel, B.; Andrew, E.; Bard, A.; Becker, A.; Becla, J.; Bickerton, S.J.; Biswas, R.; others. LSST: from science drivers to reference design and anticipated data products. The Astrophysical Journal 2019, 873, 111. [Google Scholar] [CrossRef]
- Laureijs, R.; Amiaux, J.; Arduini, S.; Auguières, J.L.; Brinchmann, J.; Cole, R.; Cropper, M.; Dabin, C.; Duvet, L.; Ealet, A.; others. Euclid definition study report. arXiv preprint arXiv:1110.3193 2011.
- Bose, S.; Mazumdar, A.; Morley, G.W.; Ulbricht, H.; Toroš, M.; Paternostro, M.; Geraci, A.A.; Barker, P.F.; Kim, M.S.; Milburn, G. Spin entanglement witness for quantum gravity. Physical Review Letters 2017, 119, 240401. [Google Scholar] [CrossRef] [PubMed]
- Penrose, R. Singularities and time-asymmetry. General relativity: an Einstein centenary survey 1979, pp. 581-638.
- Ellis, G.F. The nature of time. General Relativity and Gravitation 2008, 40, 315–332. [Google Scholar]
- Ashtekar, A.; Pawlowski, T.; Singh, P. Quantum nature of the big bang. Physical Review Letters 2006, 96, 141301. [Google Scholar] [CrossRef] [PubMed]
- Bojowald, M. Absence of a singularity in loop quantum cosmology. Physical Review Letters 2001, 86, 5227. [Google Scholar] [CrossRef] [PubMed]
- Gambini, R.; Pullin, J. Fundamental decoherence from quantum gravity: a pedagogical review. General Relativity and Gravitation 2009, 41, 1667–1677. [Google Scholar] [CrossRef]
- Kiefer, C. Quantum gravity; Oxford University Press, 2012.
- Ellis, J.; Hagelin, J.S.; Nanopoulos, D.V.; Srednicki, M. Relativistic quantum mechanics. Nuclear Physics B 2012, 241, 381–402. [Google Scholar] [CrossRef]
- Ashtekar, A.; Singh, P. Loop quantum cosmology: a status report. Classical and Quantum Gravity 2011, 28, 213001. [Google Scholar] [CrossRef]
- Smolin, L. Cosmological natural selection as the explanation for the complexity of the universe. Physica A: Statistical Mechanics and its Applications 2004, 340, 705–713. [Google Scholar] [CrossRef]
- Rovelli, C. Zakopane lectures on loop gravity. arXiv preprint arXiv:1102.3660 2011.
- Aurich, R.; Lustig, S.; Steiner, F.; Then, H. Circles in the sky: finding topology with the microwave background radiation. Classical and Quantum Gravity 2008, 25, 125006. [Google Scholar] [CrossRef]
- Collaboration, P.; Ade, P.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; Banday, A.; Barreiro, R.; Bartlett, J.; others. Planck 2015 results-xiii. cosmological parameters. Astronomy & Astrophysics 2016, 594, A13. [Google Scholar]
- Roukema, B.F. A signature of compact topology in the COBE-DMR sky maps. Monthly Notices of the Royal Astronomical Society 2000, 312, 712–720. [Google Scholar] [CrossRef]
- Fujii, H.; Yoshii, Y. Topological lensing effects as a test of cosmic topology. The Astrophysical Journal 2000, 543, 577. [Google Scholar]
- Eisenstein, D.J.; Zehavi, I.; Hogg, D.W.; Scoccimarro, R.; Blanton, M.R.; Nichol, R.C.; Scranton, R.; Seo, H.J.; Tegmark, M.; Zheng, Z.; others. Detection of the baryon acoustic peak in the large-scale correlation function of SDSS luminous red galaxies. The Astrophysical Journal 2005, 633, 560. [Google Scholar] [CrossRef]
- Abbott, T.; Abdalla, F.; Alarcon, A.; Aleksić, J.; Allam, S.; Allen, S.; Amara, A.; Annis, J.; Asorey, J.; Avila, S.; others. Dark energy survey year 1 results: cosmological constraints from galaxy clustering and weak lensing. Physical Review D 2018, 98, 043526. [Google Scholar] [CrossRef]
- Hogan, C.J. Gravitational waves from light cosmic strings: Backgrounds and bursts with large loops. Physical Review D 2000, 62, 044031. [Google Scholar] [CrossRef]
- Amelino-Camelia, G. Gravitational wave bursts from cosmic strings. Physics Letters B 2000, 480, 249–255. [Google Scholar]
- Hogan, C.J.; Rees, M.J. Gravitational radiation from cosmic strings. Nature 1986, 311, 109–114. [Google Scholar] [CrossRef]
- Damour, T.; Vilenkin, A. Gravitational wave bursts from cusps and kinks on cosmic strings. Physical Review Letters 2000, 85, 3761. [Google Scholar] [CrossRef] [PubMed]
- Abbott, B.P.; Abbott, R.; Abbott, T.; Abernathy, M.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R.; others. Observation of gravitational waves from a binary black hole merger. Physical Review Letters 2016, 116, 061102. [Google Scholar] [CrossRef] [PubMed]
- Amaro-Seoane, P.; Audley, H.; Babak, S.; Baker, J.; Barausse, E.; Bender, P.; Berti, E.; Binetruy, P.; Born, M.; Bortoluzzi, D.; others. Laser interferometer space antenna. arXiv preprint arXiv:1702.00786 2017. arXiv:1702.00786 2017.
- Spergel, D.N.; Pen, U.L. Observational constraints on brane world cosmology. The Astrophysical Journal Letters 2000, 538, L123. [Google Scholar]
- Randall, L.; Servant, G. Constraints on large extra dimensions from the LIGO-Virgo gravitational-wave detectors. Journal of High Energy Physics 2008, 2008, 054. [Google Scholar]
- Giudice, G.F. The phenomenology of large extra dimensions. Nuclear Physics B-Proceedings Supplements 2007, 171, 121–127. [Google Scholar]
- Meade, P.; Randall, L. General analysis of large extra dimensions at the LHC. Journal of High Energy Physics 2007, 2007, 003. [Google Scholar]
- Dimopoulos, S.; Landsberg, G. Black holes at the LHC. Physical Review Letters 2001, 87, 161602. [Google Scholar] [CrossRef] [PubMed]
- Giddings, S.B.; Thomas, S. Black holes at the LHC? Physical Review D 2002, 65, 056010. [Google Scholar] [CrossRef]
- Aaboud, M.; Aad, G.; Abbott, B.; Abbott, D.C.; Abdinov, O.; Abeloos, B.; Abhayasinghe, D.; Abidi, S.; AbouZeid, O.S.; Abraham, N.; others. Search for new phenomena in dijet events using 37 fb-1 of pp collision data collected at s= 13 TeV with the ATLAS detector. Physical Review D 2017, 96, 052004. [Google Scholar]
- Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Erö, J.; Valle, A.E.D.; others. Search for black holes and sphalerons in high-multiplicity final states in proton-proton collisions at √s= 13 TeV. Journal of High Energy Physics 2018, 2018, 1–48. [Google Scholar]
- Tegmark, M.; Strauss, M.A.; Blanton, M.R.; Abazajian, K.; Dodelson, S.; Sandvik, H.; Wang, X.; Weinberg, D.H.; Zehavi, I.; Bahcall, N.A.; others. Cosmological parameters from SDSS and WMAP. Physical Review D 2004, 69, 103501. [Google Scholar] [CrossRef]
- Komatsu, E.; Smith, K.M.; Dunkley, J.; Bennett, C.L.; Gold, B.; Hinshaw, G.; Jarosik, N.; Larson, D.; Nolta, M.R.; Page, L.; others. Seven-year Wilkinson Microwave Anisotropy Probe (WMAP*) observations: cosmological interpretation. The Astrophysical Journal Supplement Series 2011, 192, 18. [Google Scholar] [CrossRef]
- Alam, S.; Ata, M.; Bailey, S.; Beutler, F.; Bizyaev, D.; Blazek, J.A.; Bolton, A.S.; Brownstein, J.R.; Burden, A.; Chuang, C.H.; others. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample. Monthly Notices of the Royal Astronomical Society 2017, 470, 2617–2652. [Google Scholar] [CrossRef]
- Alam, S.; Aubert, M.; Avila, S.; Balland, C.; Bautista, J.E.; Bershady, M.A.; Bizyaev, D.; Blomqvist, M.; Boquien, M.; Brinkmann, J.; others. The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological implications from two decades of spectroscopic surveys at the Apache Point Observatory. Physical Review D 2021, 103, 083533. [Google Scholar] [CrossRef]
- Ellis, G.F. Physics on the edge. Nature 2014, 507, 424–425. [Google Scholar] [CrossRef]
- Rovelli, C. Loop quantum gravity. Living Reviews in Relativity 2008, 11, 1–69. [Google Scholar] [CrossRef] [PubMed]
- Thiemann, T. Modern canonical quantum general relativity; Cambridge University Press, 2007.
- Rovelli, C.; Smolin, L. Discreteness of area and volume in quantum gravity. Nuclear Physics B 1995, 442, 593–619. [Google Scholar] [CrossRef]
- Polchinski, J. String theory. Cambridge Monographs on Mathematical Physics 1998. [Google Scholar]
- Bojowald, M. Quantum cosmology: a fundamental description of the universe; Springer Science & Business Media, 2011.
- Oriti, D. Group field theory as the 2nd quantization of loop quantum gravity. Classical and Quantum Gravity 2014, 31, 063001. [Google Scholar]
- Griffiths, D.J.; Schroeter, D.F. Introduction to quantum mechanics; Cambridge University Press, 2018.
- Shankar, R. Principles of quantum mechanics; Springer Science & Business Media, 2012.
- Heisenberg, W. Über den anschaulichen Inhalt der quantentheoretischen Kinematik und Mechanik. Zeitschrift für Physik 1927, 43, 172–198. [Google Scholar] [CrossRef]
- Von Neumann, J. Mathematical foundations of quantum mechanics; Princeton University Press, 1955.
- Schrödinger, E. Die gegenwärtige Situation in der Quantenmechanik. Naturwissenschaften 1935, 23, 807–812. [Google Scholar] [CrossRef]
- Nielsen, M.A.; Chuang, I.L. Quantum computation and quantum information; Cambridge University Press, 2002.
- Ghirardi, G.C.; Rimini, A.; Weber, T. Unified dynamics for microscopic and macroscopic systems. Physical Review D 1986, 34, 470. [Google Scholar] [CrossRef] [PubMed]
- Zurek, W.H. Decoherence, einselection, and the quantum origins of the classical. Reviews of modern physics 2003, 75, 715. [Google Scholar] [CrossRef]
- Wheeler, J.A. Law without law. Quantum theory and measurement 1983, pp. 182–213.
- Becker, K.; Becker, M.; Schwarz, J.H. String theory and M-theory: A modern introduction; Cambridge University Press,2006.
- Bassi, A.; Lochan, K.; Satin, S.; Singh, T.P.; Ulbricht, H. Models of wave-function collapse, underlying theories, and experimental tests. Reviews of Modern Physics 2013, 85, 471. [Google Scholar] [CrossRef]
- Penrose, R. On the gravitization of quantum mechanics 1: Quantum state reduction. Foundations of Physics 2014, 44, 557–575. [Google Scholar] [CrossRef]
- Amelino-Camelia, G. Quantum-spacetime phenomenology. Living Reviews in Relativity 2013, 16, 5. [Google Scholar] [CrossRef] [PubMed]
- Bojowald, M. Loop quantum cosmology. Living Reviews in Relativity 2008, 11, 1–131. [Google Scholar] [CrossRef] [PubMed]
- Hofstadter, D.R. G“odel, Escher, Bach: An eternal golden braid; Basic books, 1979.
- Lakoff, G.; N’u nez, R.E. Where mathematics comes from: How the embodied mind brings mathematics into being; Basic books, 2000.
- Luminet, J.P. The shape and topology of the universe. arXiv preprint arXiv:0802.2236 2008.
- Von Neumann, J. Mathematical foundations of quantum mechanics: Newedition; Princeton University Press, 2018.
- Everett, H. Relative state formulation of quantum mechanics. Reviews of Modern Physics 1957, 29, 454. [Google Scholar] [CrossRef]
- Wigner, E.P. Remarks on the mind-body question. Philosophical Reflections and Syntheses 1995, pp. 247–260.
- Mac Lane, S. Categories for the Working Mathematician; Springer Science & Business Media, 2013.
- Dummit, D.S.; Foote, R.M. Abstract Algebra; John Wiley & Sons, 2004.
- Hall, B.C. Lie Groups, Lie Algebras, and Representations: An Elementary Introduction; Springer, 2015.
- Lee, J.M. Smooth Manifolds; Springer, 2013.
- Johnstone, P.T. Sketches of an Elephant: A Topos Theory Compendium; Oxford University Press, 2002.
- Bohm, D. Wholeness and the implicate order; Routledge, 1980.
- Capra, F. The web of life: A new scientific understanding of living systems; Anchor, 1996.
- Li, Y.; Shen, J.; Chen, X.; Wang, S.; Taya, M. Multifunctional materials and structures. Journal of Materials Research 2016, 31, 2463–2469. [Google Scholar]
- Floreano, D.; Mattiussi, C. Bio-inspired artificial intelligence: theories, methods, and technologies. MIT press 2008. [Google Scholar]
- Nicolescu, B. Manifesto of transdisciplinarity; SUNY Press, 2002.
- Chaitin, G.J. Meta math!: the quest for omega. arXiv preprint math/0404335 2006.
- Shapiro, S. Thinking about mathematics: The philosophy of mathematics; Oxford University Press, 2000.
- Stapp, H.P. Mindful universe: Quantum mechanics and the participating observer; Springer Science & Business Media, 2011.
- Deutsch, D. Quantum theory, the Church–Turing principle and the universal quantum computer. Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences 1985, 400, 97–117. [Google Scholar]
- Hersh, R. What is mathematics, really?; Oxford University Press, 1997.
- Poincar’e, H. Science and hypothesis; Science Press, 1905.
- Wigner, E.P. The unreasonable effectiveness of mathematics in the natural sciences. Communications on Pure and Applied Mathematics 1960, 13, 1–14. [Google Scholar] [CrossRef]
- Oki, T.; Kanae, S. Global hydrological cycles and world water resources. Science 2006, 313, 1068–1072. [Google Scholar] [CrossRef] [PubMed]
- Tegmark, M. The mathematical universe. Foundations of Physics 2008, 38, 101–150. [Google Scholar] [CrossRef]
- Wolf, W.P. Mathematics for physics and physicists; Princeton University Press, 2011.
- Smolin, L. Three roads to quantum gravity. Basic Books 2001. [Google Scholar]
- Smolin, L. The trouble with physics: The rise of string theory, the fall of a science, and what comes next; Houghton Mifflin Harcourt, 2006.
- Shor, P.W. Polynomial-time algorithms for prime factorization and discrete logarithms on a quantum computer. SIAM Review 1999, 41, 303–332. [Google Scholar] [CrossRef]
- Harrow, A.W.; Montanaro, A. Quantum supremacy using a programmable superconducting processor. Nature 2017, 549, 203–209. [Google Scholar] [CrossRef] [PubMed]
- Joshi, V.; Joshi, V. A review of shape memory alloys and their applications. Journal of Materials Science and Engineering 2007, 1, 1–20. [Google Scholar]
- Khoo, Z.X.; Teoh, J.E.; Liu, Y.; Chua, C.K.; Yang, S.; An, J.; Leong, K.F.; Yeong, W.Y. A review of stimuli-responsive polymers for smart textile applications. Materials & Design 2014, 78, 1–23. [Google Scholar]
- Dincer, I. Comprehensive energy systems; Elsevier, 2018.
- Chu, S.; Majumdar, A. Opportunities and challenges for a sustainable energy future. Nature 2012, 488, 294–303. [Google Scholar] [CrossRef]
- LeCun, Y.; Bengio, Y.; Hinton, G. Deep learning. Nature 2015, 521, 436–444. [Google Scholar] [CrossRef] [PubMed]
- Silver, D.; Huang, A.; Maddison, C.J.; Guez, A.; Sifre, L.; Van Den Driessche, G.; Schrittwieser, J.; Antonoglou, I.; Panneershelvam, V.; Lanctot, M.; others. Mastering the game of Go with deep neural networks and tree search. Nature 2016, 529, 484–489. [Google Scholar] [CrossRef] [PubMed]
- Connes, A. Noncommutative geometry. Publications Math’ematiques de l’IH’ES 1994, 62, 41–144. [Google Scholar] [CrossRef]
- Baez, J.C.; Stay, M. Physics, topology, logic and computation: a Rosetta Stone. New Structures for Physics 2010, pp. 95–172.
- Klein, J.T. Prospects for transdisciplinarity. Futures 2004, 36, 515–526. [Google Scholar] [CrossRef]
- Bekenstein, J.D. Black holes and entropy. Physical Review D 1973, 7, 2333. [Google Scholar] [CrossRef]
- Hu, W. Dark energy and dark matter in the universe. Astronomy 2009, 2009, 55. [Google Scholar]
- Bransford, J.D.; Brown, A.L.; Cocking, R.R.; others. How people learn: Brain, mind, experience, and school: Expanded edition; National Academies Press, 2000.
- Stephan, P. How economics shapes science; Harvard University Press, 2012.
- Weinberg, S. To explain the world: The discovery of modern science; Penguin UK, 2015.
- Horodecki, R.; Horodecki, P.; Horodecki, M.; Horodecki, K. Quantum entanglement. Reviews of Modern Physics 2009, 81, 865. [Google Scholar] [CrossRef]
- Vilenkin, A. Creation of universes from nothing. Physics Letters B 1982, 117, 25–28. [Google Scholar] [CrossRef]
- Einstein, A.; Podolsky, B.; Rosen, N. Can quantum-mechanical description of physical reality be considered complete? Physical review 1935, 47, 777. [Google Scholar] [CrossRef]
- Ryu, S.; Takayanagi, T. Holographic derivation of entanglement entropy from the anti–de Sitter space/conformal field theory correspondence. Physical review letters 2006, 96, 181602. [Google Scholar] [CrossRef]
- Calabrese, P.; Cardy, J. Entanglement entropy and quantum field theory. Journal of Statistical Mechanics: Theory and Experiment 2004, 2004, P06002. [Google Scholar] [CrossRef]
- Van Raamsdonk, M. Building up spacetime with quantum entanglement. General Relativity and Gravitation 2010, 42, 2323–2329. [Google Scholar] [CrossRef]
- Hawking, S.W. Breakdown of predictability in gravitational collapse. Physical Review D 1976, 14, 2460. [Google Scholar] [CrossRef]
- Vedral, V. Quantifying entanglement in macroscopic systems. Nature 2008, 453, 1004–1007. [Google Scholar] [CrossRef] [PubMed]
- Cardoso, V.; Dias, O.J.; Hartnett, G.S.; Lehner, L.; Santos, J.E. Holographic thermalization, quasinormal modes and superradiance in Kerr–AdS. Journal of High Energy Physics 2014, 2014, 1–42. [Google Scholar] [CrossRef]
- Preskill, J. Quantum computing in the NISQ era and beyond. Quantum 2018, 2, 79. [Google Scholar] [CrossRef]
- Schwarzschild, K. "Uber das Gravitationsfeld eines Massenpunktes nach der Einsteinschen Theorie. Sitzungsberichte der K"oniglich Preussischen Akademie der Wissenschaften (Berlin), 1916, Seite 189-196 1916, 1916, 189–196. [Google Scholar]
- Kerr, R.P. Gravitational field of a spinning mass as an example of algebraically special metrics. Physical Review Letters 1963, 11, 237. [Google Scholar] [CrossRef]
- Hawking, S.W. Black hole explosions? Nature 1974, 248, 30–31. [Google Scholar] [CrossRef]
- Susskind, L. The cosmic landscape: String theory and the illusion of intelligent design. The Cosmic Landscape: String Theory and the Illusion of Intelligent Design 2005, pp. 1–473.
- Smolin, L. Temporal naturalism. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 2013, 44, 142–153. [Google Scholar]
- Einstein, A. Die Feldgleichungen der Gravitation. Sitzungsberichte der Preussischen Akademie der Wissenschaften zu Berlin 1915, pp. 844–847.
- Carroll, S.M. The cosmological constant. Living Reviews in Relativity 2001, 4, 1–56. [Google Scholar] [CrossRef]
- Hayward, S.A. Formation and evaporation of nonsingular black holes. Physical Review Letters 2006, 96, 031103. [Google Scholar] [CrossRef] [PubMed]
- Frolov, V.P.; Zelnikov, A. Black hole physics: basic concepts and new developments; Vol. 96, Springer Science & Business Media, 2012.
- Zeh, H.D. The role of the observer in the Everett interpretation. Foundations of Physics 2007, 37, 1476–1494. [Google Scholar] [CrossRef]
- Gisin, N.; Percival, I.C. Quantum measurements and stochastic processes. Journal of Physics A: Mathematical and General 1992, 25, 5677. [Google Scholar] [CrossRef]
- Percival, I. Quantum state diffusion; Cambridge University Press, 1998.
- Lindblad, G. On the generators of quantum dynamical semigroups. Communications in Mathematical Physics 1976, 48, 119–130. [Google Scholar] [CrossRef]
- Gardiner, C.W. Stochastic methods; Vol. 4, Springer Berlin, 2009.
- Breuer, H.P.; Petruccione, F.; others. The theory of open quantum systems; Oxford University Press on Demand, 2002.
- Wen, X.G. Quantum field theory of many-body systems: from the origin of sound to an origin of light and electrons; Oxford University Press on Demand, 2004.
- Hu, W. Structure formation with generalized dark matter. The Astrophysical Journal 1998, 506, 485. [Google Scholar] [CrossRef]
- Dunne, M.J. Infinite regress arguments; Springer, 2009.
- Wiener, N. Cybernetics or Control and Communication in the Animal and the Machine; MIT Press, 2019.
- Wolfram, S. A new kind of science; Wolfram media Champaign, IL, 2002.
- Tegmark, M. Consciousness as a state of matter. Chaos, Solitons & Fractals 2015, 76, 238–270. [Google Scholar]
- Susskind, L. The world as a hologram. Journal of Mathematical Physics 1995, 36, 6377–6396. [Google Scholar] [CrossRef]
- Lovelock, J. Gaia: A new look at life on earth; Oxford University Press, 1979.
- Fuchs, C.A.; Peres, A. Quantum mechanics: an introduction; World Scientific, 2014.
- Maudlin, T. Philosophy of physics: Quantum theory; Princeton University Press, 2019.
- Zeh, H.D. Decoherence: basic concepts and their interpretation. arXiv preprint quant-ph/9506020 2003.
- Rovelli, C. Relational quantum mechanics. International Journal of Theoretical Physics 1996, 35, 1637–1678. [Google Scholar] [CrossRef]
- Barrow, J.D. The book of universes: exploring the limits of the cosmos; Random House, 2011.
- Giovannetti, V.; Lloyd, S.; Maccone, L. Advances in quantum metrology. Nature Photonics 2011, 5, 222–229. [Google Scholar] [CrossRef]
- Ellis, G.F. Top-down causation and emergence: some comments on mechanisms. Interface Focus 2012, 2, 126–140. [Google Scholar] [CrossRef] [PubMed]
- Cronin, A.D.; Schmiedmayer, J.; Pritchard, D.E. Optics and interferometry with atoms and molecules. Reviews of Modern Physics 2009, 81, 1051. [Google Scholar] [CrossRef]
- Degen, C.L.; Reinhard, F.; Cappellaro, P. Quantum sensing. Reviews of Modern Physics 2017, 89, 035002. [Google Scholar] [CrossRef]
- Joos, E.; Zeh, H.D.; Kiefer, C.; Giulini, D.J.; Kupsch, J.; Stamatescu, I.O. Decoherence and the appearance of a classical world in quantum theory; Springer Science & Business Media, 2013.
- Schlosshauer, M. Decoherence, the measurement problem, and interpretations of quantum mechanics. Reviews of Modern Physics 2005, 76, 1267. [Google Scholar] [CrossRef]
- Kafatos, M.C.; Nadeau, R. Conscious acts of creation: The emergence of a new physics; Universal Pub, 2011.
- Wigner, E.P. Remarks on the mind-body question. Symmetries and reflections 1967, pp. 171–184.
- Penrose, R. Shadows of the Mind: A Search for the Missing Science of Consciousness; Oxford University Press, 1994.
- Goswami, A.; Goswami, A.; Reed, R.E.; Goswami, M. The self-aware universe: How consciousness creates the material world; Penguin, 1995.
- Stapp, H.P. Mind, matter, and quantum mechanics. Foundations of Physics 2009, 39, 1018–1018. [Google Scholar]
- Radin, D. Entangled minds: Extrasensory experiences in a quantum reality; Simon and Schuster, 2006.
- Rosenblum, B.; Kuttner, F. Quantum enigma: Physics encounters consciousness; Oxford University Press, 2011.
- Hoefer, C. Causal determinism. Stanford Encyclopedia of Philosophy 2016. [Google Scholar]
- Kane, R. The significance of free will. In Philosophical Perspectives on Free Will; Routledge, 1999; pp. 1–20.
- Laplace, P.S. A philosophical essay on probabilities; Courier Corporation, 1951.
- Searle, J.R. Rationality in action; MIT press, 2001.
- Doyle, B. Free will: The scandal in philosophy; I-Phi Press, 2011.
- Chalmers, D.J. The conscious mind: In search of a fundamental theory; Oxford University Press, 1996.
- Goff, P. Consciousness and fundamental reality; Oxford University Press, 2017.
- Tononi, G.; Boly, M.; Massimini, M.; Koch, C. Integrated information theory. Scholarpedia 2015, 10, 4164. [Google Scholar] [CrossRef]
- Nagel, T. Mind and cosmos: Why the materialist neo-Darwinian conception of nature is almost certainly false; Oxford University Press, 2012.
- Ma, X.s.; Zotter, S.; Kofler, J.; Ursin, R.; Jennewein, T.; Brukner, Č.; Zeilinger, A. Quantum entanglement with two-photon states generated in Franson-type experiments. Physical Review A 2012, 86, 010302. [Google Scholar]
- Everett III, H. " Relative state" formulation of quantum mechanics. Reviews of modern physics 1957, 29, 454. [Google Scholar] [CrossRef]
- Stapp, H.P. Mindful universe: Quantum mechanics and the participating observer. Springer Science & Business Media 2007.
- Penrose, R. Fashion, faith, and fantasy in the new physics of the universe; Princeton University Press, 2016.
- Ambjørn, J.; Goerlich, A.; Jurkiewicz, J.; Loll, R. Nonperturbative quantum gravity. Physics Reports 2012, 519, 127–210. [Google Scholar] [CrossRef]
- Loll, R. Quantum gravity on the computer: Impressions of a workshop. Classical and Quantum Gravity 2019, 36, 033001. [Google Scholar]
- Ambjørn, J.; Jurkiewicz, J.; Loll, R. Emergence of a 4D world from causal quantum gravity. Physical Review Letters 2005, 93, 131301. [Google Scholar] [CrossRef] [PubMed]
- Chamseddine, A.H.; Connes, A.; Marcolli, M. Noncommutative geometry as a framework for unification of all fundamental interactions including gravity. Part I. Fortschritte der Physik 2007, 55, 761–781. [Google Scholar] [CrossRef]
- Barrett, J.W. A Lorentzian version of the non-commutative geometry of the standard model of particle physics. Journal of Mathematical Physics 2007, 48, 012303. [Google Scholar] [CrossRef]
- Tegmark, M. Parallel universes. Scientific American 2003, 288, 40–51. [Google Scholar] [CrossRef] [PubMed]
- DeWitt, B.S. Quantum mechanics and reality. Physics Today 1970, 23, 30–35. [Google Scholar] [CrossRef]
- Vaidman, L. Many-worlds interpretation of quantum mechanics. The Stanford Encyclopedia of Philosophy 2008. [Google Scholar]
- Bousso, R. The holographic principle. Reviews of Modern Physics 2002, 74, 825. [Google Scholar] [CrossRef]
- Bekenstein, J.D. Information in the holographic universe. Scientific American 2003, 289, 58–65. [Google Scholar] [CrossRef]
- Maldacena, J. The large N limit of superconformal field theories and supergravity. Advances in Theoretical and Mathematical Physics 1999, 2, 231–252. [Google Scholar] [CrossRef]
- Aharony, O.; Gubser, S.S.; Maldacena, J.; Ooguri, H.; Oz, Y. Large N field theories, string theory and gravity. Physics Reports 2000, 323, 183–386. [Google Scholar] [CrossRef]
- Horowitz, G.T.; Polchinski, J. Gauge/gravity duality. Approaches to Quantum Gravity 2006, pp. 169–186.
- Kocsis, B.; Frei, Z.; Haiman, Z.; Menou, K. Observable signatures of extreme mass-ratio inspiral black hole binaries embedded in thin accretion disks. The Astrophysical Journal 2006, 637, 27. [Google Scholar] [CrossRef]
- Piao, Y.S. Primordial perturbation spectra in a holographic phase of the Universe. Physical Review D 2006, 74, 047302. [Google Scholar] [CrossRef]
- Roukema, B.F.; Bajtlik, S.; Biesiada, M.; Szaniewska, A.; Jurkiewicz, H. A toroidal universe from black-hole spinors. Astronomy & Astrophysics 2004, 418, 411–415. [Google Scholar]
- Abazajian, K.; Addison, G.; Adshead, P.; Ahmed, Z.; Allen, S.W.; Alonso, D.; Alvarez, M.; Anderson, A.; Arnold, K.; Baccigalupi, C.; others. CMB-S4 science book, first edition. arXiv preprint arXiv:1907.04473 2019.
- Reitze, D.; others. Cosmic explorer: the US contribution to gravitational-wave astronomy beyond LIGO. Bulletin of the American Astronomical Society 2019, 51, 035. [Google Scholar]
- Mandelbaum, R. Weak lensing as a probe of physical properties of substructures in dark matter halos. Annual Review of Astronomy and Astrophysics 2018, 56, 393–433. [Google Scholar] [CrossRef]
- Bouwmeester, D.; Horne, M.A.; Zeilinger, A. Experimentally verifying the quantumness of a macroscopic object. The Physics of Quantum Information 1999, pp. 7–22.
- Young, W.; Stebbins, R.; Thorpe, J.I.; McKenzie, K. Mission design for the Laser Interferometer Space Antenna (LISA) gravitational wave observatory. arXiv preprint arXiv:1807.09707 2018. arXiv:1807.09707 2018.
- Wasserman, L. All of statistics: a concise course in statistical inference; Springer, 2010.
- Sanders, G.H. The Thirty Meter Telescope (TMT): An International Observatory. Journal of Astrophysics and Astronomy 2013, 34, 81–86. [Google Scholar] [CrossRef]
- Dravins, D. Future high-resolution studies of stars and stellar systems. Proceedings of the International Astronomical Union 2005, 1, 203–212. [Google Scholar]
- Brown, R.R.; Deletic, A.; Wong, T.H. Interdisciplinary research: Meaning, metrics and nurture. Research Policy 2015, 44, 1187–1197. [Google Scholar]
- Ries, N. The case for technology development in the environmental sciences. Environmental Science & Technology 2015, 49, 1–2. [Google Scholar]
- Carney, D.; Stamp, P.C.; Taylor, J.M. Tabletop experiments for quantum gravity: a review. Classical and Quantum Gravity 2019, 36, 034001. [Google Scholar] [CrossRef]
- Stephan, P. Research funding: trends and challenges. The Palgrave handbook of economics and language 2015, pp. 203–224.
- Adhikari, R.; Aguiar, O.; Altin, P.; Ballmer, S.; Barsotti, L.; Bassiri, R.; Bell, A.; Billingsley, G.; Bird, A.; Blair, C.; others. Gravitational wave detectors: the next generation. arXiv preprint arXiv:2001.11173 2020.
- Barish, B.C.; Weiss, R. LIGO and the detection of gravitational waves. Physics today 1999, 52, 44–50. [Google Scholar] [CrossRef]
- Collaboration, L.S.; others. Advanced LIGO. Classical and quantum gravity 2015, 32, 074001. [Google Scholar] [CrossRef]
- Punturo, M.; Abernathy, M.; Acernese, F.; Allen, B.; Andersson, N.; Arun, K.; Barone, F.; Barr, B.; Barsuglia, M.; Beker, M.; others. The Einstein Telescope: a third-generation gravitational wave observatory. Classical and Quantum Gravity 2010, 27, 194002. [Google Scholar] [CrossRef]
- Battiston, R.; Berti, E.; Grimani, C.; Punturo, M.; Sesana, A.; Tamanini, N. Fundamental physics and cosmology with the Laser Interferometer Space Antenna. arXiv preprint arXiv:2108.01167 2021.
- Ivezi’c, Ž.; Connolly, A.J.; VanderPlas, J.T.; Gray, A. Statistics, data mining, and machine learning in astronomy: a practical Python guide for the analysis of survey data; Princeton University Press, 2014.
- Jordan, M.I.; Mitchell, T.M. Machine learning: Trends, perspectives, and prospects. Science 2015, 349, 255–260. [Google Scholar] [CrossRef] [PubMed]
- Eigenbrode, S.D.; O’Rourke, M.; Wulfhorst, J.D.; Althoff, D.M.; Goldberg, C.S.; Merrill, K.; Morse, W.; Nielsen-Pincus, M.; Stephens, J.; Winowiecki, L.; others. Employing philosophical dialogue in collaborative science. BioScience 2007, 57, 55–64. [Google Scholar] [CrossRef]
- Hall, K.L.; Vogel, A.L.; Huang, G.C.; Serrano, K.J.; Rice, E.L.; Tsakraklides, S.P.; Fiore, S.M. Collaboration and team science: from theory to practice. Journal of investigative medicine 2012, 60, 768–775. [Google Scholar]
- Popper, K. The logic of scientific discovery; Routledge, 2014.
- Nosek, B.A.; Alter, G.; Banks, G.C.; Borsboom, D.; Bowman, S.D.; Breckler, S.J.; Buck, S.; Chambers, C.D.; Chin, G.; Christensen, G.; others. Promoting an open research culture. Science 2015, 348, 1422–1425. [Google Scholar] [CrossRef]
- Deutsch, D. The fabric of reality; Penguin UK, 1997.
- Feynman, R.P.; Leighton, R.B.; Sands, M. The Feynman lectures on physics, Vol. III: Quantum mechanics; Basic Books, 2011.
- Wheeler, J.A. The "Past" and the "Delayed-Choice" Double-Slit Experiment. In Mathematical Foundations of Quantum Theory; Academic Press, 1978; pp. 9–48.
- Searle, J.R. The mystery of consciousness; New York Review of Books, 1997.
- Conway, J.; Kochen, S. Free will, quantum mechanics, and the brain. Foundations of Physics 2006, 36, 1441–1473. [Google Scholar] [CrossRef]
- Radin, D. Supernormal: Science, yoga, and the evidence for extraordinary psychic abilities; Deepak Chopra, 2013.
- Chalmers, D.J. The character of consciousness. In The Character of Consciousness; Oxford University Press, 2010; pp. 3–35.
- Shannon, C.E. A mathematical theory of communication. The Bell system technical journal 1948, 27, 379–423. [Google Scholar] [CrossRef]
- Davies, P.; Gregersen, N.H. Information and the nature of reality: From physics to metaphysics; Cambridge University Press, 2010.
- Hawking, S. A brief history of time: From the big bang to black holes; Bantam Books, 1988.
- Tononi, G.; Boly, M.; Massimini, M.; Koch, C. Integrated information theory: from consciousness to its physical substrate. Nature Reviews Neuroscience 2016, 17, 450–461. [Google Scholar] [CrossRef] [PubMed]
- Br"untrup, G.; Jaskolla, L. Panpsychism and monism. In Panpsychism: Contemporary Perspectives; Oxford University Press, 2016; pp. 48–74.
- Skrbina, D. Panpsychism in the West; MIT Press, 2005.
- Nagel, T. Panpsychism. Mortal questions 1979, pp. 181–195.
- Seager, W. Panpsychist infusion. Routledge Handbook of Panpsychism 2020, pp. 229–248.
- Kane, R. The Oxford handbook of free will; Oxford University Press, 2002.
- Nahmias, E. Is free will an illusion? Confronting challenges from the modern mind sciences. In Moral psychology; MIT Press Cambridge, MA, 2014; pp. 1–25.
- Heisenberg, W. Physics and philosophy: The revolution in modern science; Harper & Row, 1958.
- Bedau, M.A.; Humphreys, P. Emergence: Contemporary readings in philosophy and science; MIT press, 2008.
- Chalmers, D.J. Strong and weak emergence. In The Re-Emergence of Emergence; Oxford University Press Oxford, 2006; pp. 244–256.
- Tononi, G. An information integration theory of consciousness. BMC neuroscience 2004, 5, 1–22. [Google Scholar] [CrossRef] [PubMed]
- Kim, J. Mind in a physical world: An essay on the mind-body problem and mental causation; MIT press, 1998.
- Searle, J.R. Minds, brains, and programs. Behavioral and brain sciences 1980, 3, 417–424. [Google Scholar] [CrossRef]
- Dennett, D.C. Consciousness explained; Little, Brown and Co, 1991.
- Chakravartty, A. Scientific ontology: Integrating naturalized metaphysics and voluntarist epistemology; Oxford University Press, 2017.
- Ladyman, J.; Ross, D.; Spurrett, D.; Collier, J. Every thing must go: Metaphysics naturalized; Oxford University Press, 2007.
- Putnam, H. What is mathematical truth? Historia Mathematica 1975, 2, 529–543. [Google Scholar] [CrossRef]
- Kauffman, S.A. The origins of order: Self-organization and selection in evolution; Oxford University Press, USA, 1993.
- Tipler, F.J. The physics of immortality: Modern cosmology, God and the resurrection of the dead; Anchor, 1994.
- Davies, P. The Goldilocks enigma: Why is the universe just right for life?; HMH, 2008.
- Strawson, G. Realistic monism: Why physicalism entails panpsychism. Journal of Consciousness Studies 2006, 13, 3–31. [Google Scholar]
- Kane, R. The significance of free will; Oxford University Press, 1996.
- Katz, J.S.; Martin, B.R. What is research collaboration? Research Policy 1997, 26, 1–18. [Google Scholar] [CrossRef]
- Wilson, E.O. Consilience: The unity of knowledge; Vol. 31, Vintage, 1999.
- Sathyaprakash, B.; Schutz, B.F. Physics, astrophysics and cosmology with gravitational waves. Living Reviews in Relativity 2009, 12, 1–141. [Google Scholar]
- Kuhn, T.S. The structure of scientific revolutions; University of Chicago press, 2012.
- Sagan, C. Cosmos; Ballantine Books, 2011.
- Dirac, P.A.M. The principles of quantum mechanics; Number 27 in International Series of Monographs on Physics, Oxford University Press, 1981.
- Born, M. Zur quantenmechanik der stoßvorg"ange. Zeitschrift f"ur Physik 1926, 37, 863–867. [Google Scholar] [CrossRef]
- Einstein, A. Die grundlage der allgemeinen relativit"atstheorie. Annalen der Physik 1916, 354, 769–822. [Google Scholar] [CrossRef]
- Zurek, W.H. Quantum Darwinism. Nature Physics 2009, 5, 181–188. [Google Scholar] [CrossRef]
- Marshman, R.J.; Mazumdar, A.; Bose, S. Locality and entanglement in table-top testing of the quantum nature of linearized gravity. Physical Review A 2020, 101, 052110. [Google Scholar] [CrossRef]
- Almheiri, A.; Marolf, D.; Polchinski, J.; Sully, J. Black holes: complementarity or firewalls? Journal of High Energy Physics 2013, 2013, 1–20. [Google Scholar] [CrossRef]
- Baez, J.C. Higher-dimensional algebra and Planck-scale physics; Cambridge University Press, 2004.
- Witten, E. A new look at the path integral of quantum mechanics. arXiv preprint arXiv:1009.6032 2010.
- Atiyah, M.F. K-theory and reality. The Quarterly Journal of Mathematics 1967, 17, 367–386. [Google Scholar] [CrossRef]
- Penrose, R. The road to reality: A complete guide to the laws of the universe; Jonathan Cape, 2004.
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