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Why the Observable Universe Is Not Fundamental
Pietro Cambi
Posted: 29 May 2026
The Nature of Dark Matter and Cosmological Structure Derived from Generalized Time and Spacetime Duality
John Henderson
Posted: 29 May 2026
A New Line-Integral Method for Gravitational Lensing by Black Holes
İzzet Sakallı
Posted: 29 May 2026
Emergent Quantum Gravity from Hypercomplex Spinor Geometry: Modified Gravity and Emergent Hubble Tension and Cosmological Constant
Jau Tang
Posted: 28 May 2026
A Mathematical Exploration of the Distance–Redshift Mapping in Cosmology
Jose Luis Parra
Posted: 25 May 2026
Finite Memory and Infinite Transformation: A Clarification and Admissibility Scaffold for CIOU
Stephen Atalebe
Posted: 25 May 2026
Gravitational and Dark-Matter Concepts that Can Help Explain and Predict Cosmic Data
Thomas J. Buckholtz
Posted: 21 May 2026
New Prediction for Gravitational Wave Background from Topological Phase Transitions in the Early Universe
Ahmed Ali
Through this paper we analyze from first-principles, high-precision derivation of the spectral shape, characteristic amplitude, and unique observational signatures of the stochastic gravitational wave background (SGWB) generated during the primordial first-order topological phase transition that is a fundamental prediction of the Expanded Quantum String Theory with Gluonic Plasma (EQST-GP) framework. The transition corresponds to the spontaneous symmetry breaking \( SU(4) \to SU(3)_C \times U(1)_{\text{DM}} \) within the gluonic plasma confined to M5-brane world-volumes in the specific compactification geometry \( M_4 \times \text{CY}_3 \times S^1/\mathbb{Z}_2 \) with Euler characteristic \( \chi(\text{CY}_3) \approx -960 \). We move beyond generic parameterizations to perform a complete microphysical calculation. Starting from the finite-temperature effective potential for the symmetry-breaking scalar field \( \Phi \), where the coefficients \( D, T_0, E, \lambda \) in \( V_{\text{eff}}(\Phi, T) \approx D (T^2 - T_0^2) \Phi^2 - E T \Phi^3 + (\lambda/4) \Phi^4 \) are not free parameters but are explicitly computed from the underlying M-theory parameters: the M5-brane tension \( T_{M5} = (2\pi)^{-5} l_P^{-6} \), the volumes of the wrapped 2-cycles \( \text{Vol}(\Sigma_2) \), the stabilized values of the Kähler moduli $T_i$ from the KKLT-inspired potential \( V_{\text{up}}(\phi) \), and the thermal contributions of the confined \( SU(4) \) gluon degrees of freedom and the associated moduli fields. This derivation yields a highly specific set of phase transition parameters: a critical temperature \( T_c = 1.04^{+0.06}_{-0.05} \times 10^{16} \, \text{GeV} \), a nucleation temperature \( T_n = 0.971 \times 10^{16} \, \text{GeV} \) (corresponding to a Euclidean action \( S_3(T_n)/T_n = 138.2 \)), a transition strength parameter \( \alpha = 0.42 \pm 0.03 \) defined as the ratio of latent heat density to radiation energy density \( \alpha = \epsilon / \rho_{\text{rad}} \), and an inverse transition duration relative to Hubble \( \beta / H_* = 94.7 \). The bubble wall velocity \( v_w \), determined from the balance of the vacuum driving pressure against the friction from the strongly-coupled (2,0)-theory plasma on the M5-branes, is calculated to be \( v_w = 0.27 \, c \), characteristic of a deflagration mode. We then compute the gravitational wave spectrum \( \Omega_{\text{GW}}(f) h^2 \) from the three principal sources—scalar field bubble collisions \( (\Omega_\phi) \), sound waves in the post-collision plasma \( (\Omega_{\text{sw}}) \), and magnetohydrodynamic turbulence \( (\Omega_{\text{turb}}) \)—using the most advanced hydrodynamic simulations and envelope approximations, adapted for the specific relativistic degrees of freedom \( g_* = 187 \) of the EQST-GP plasma. The total spectrum exhibits a distinct, multi-peak fingerprint: a primary peak from sound waves at \( f_{\text{sw}} = 1.87 \times 10^{-3} \, \text{Hz} \) with amplitude \( \Omega_{\text{GW, sw}} h^2 = 6.31 \times 10^{-14} \), a secondary, broader peak from turbulence at \( f_{\text{turb}} \approx 3.2 \times 10^{-3} \, \text{Hz} \) with \( \Omega_{\text{GW, turb}} h^2 \approx 1.2 \times 10^{-14} \), and a high-frequency tail from bubble collisions. Crucially, we establish a detailed discrimination strategy demonstrating that the EQST-GP signal is distinguishable from inflationary tensor modes, cosmic string networks, and generic first-order phase transitions through multi-messenger consistency with predictions for ultra-heavy Majorana gluon dark matter, Hubble tension resolution, and fundamental constant derivation. We present a comprehensive detection blueprint for LISA, demonstrating that a signal-to-noise ratio $\text{SNR} > 8$ is achievable over a 4-year mission with optimal template-based analysis, and outline how cross-correlation with future CMB B-mode polarization measurements and 21-cm cosmology observations can further isolate this signal from astrophysical foregrounds.
Through this paper we analyze from first-principles, high-precision derivation of the spectral shape, characteristic amplitude, and unique observational signatures of the stochastic gravitational wave background (SGWB) generated during the primordial first-order topological phase transition that is a fundamental prediction of the Expanded Quantum String Theory with Gluonic Plasma (EQST-GP) framework. The transition corresponds to the spontaneous symmetry breaking \( SU(4) \to SU(3)_C \times U(1)_{\text{DM}} \) within the gluonic plasma confined to M5-brane world-volumes in the specific compactification geometry \( M_4 \times \text{CY}_3 \times S^1/\mathbb{Z}_2 \) with Euler characteristic \( \chi(\text{CY}_3) \approx -960 \). We move beyond generic parameterizations to perform a complete microphysical calculation. Starting from the finite-temperature effective potential for the symmetry-breaking scalar field \( \Phi \), where the coefficients \( D, T_0, E, \lambda \) in \( V_{\text{eff}}(\Phi, T) \approx D (T^2 - T_0^2) \Phi^2 - E T \Phi^3 + (\lambda/4) \Phi^4 \) are not free parameters but are explicitly computed from the underlying M-theory parameters: the M5-brane tension \( T_{M5} = (2\pi)^{-5} l_P^{-6} \), the volumes of the wrapped 2-cycles \( \text{Vol}(\Sigma_2) \), the stabilized values of the Kähler moduli $T_i$ from the KKLT-inspired potential \( V_{\text{up}}(\phi) \), and the thermal contributions of the confined \( SU(4) \) gluon degrees of freedom and the associated moduli fields. This derivation yields a highly specific set of phase transition parameters: a critical temperature \( T_c = 1.04^{+0.06}_{-0.05} \times 10^{16} \, \text{GeV} \), a nucleation temperature \( T_n = 0.971 \times 10^{16} \, \text{GeV} \) (corresponding to a Euclidean action \( S_3(T_n)/T_n = 138.2 \)), a transition strength parameter \( \alpha = 0.42 \pm 0.03 \) defined as the ratio of latent heat density to radiation energy density \( \alpha = \epsilon / \rho_{\text{rad}} \), and an inverse transition duration relative to Hubble \( \beta / H_* = 94.7 \). The bubble wall velocity \( v_w \), determined from the balance of the vacuum driving pressure against the friction from the strongly-coupled (2,0)-theory plasma on the M5-branes, is calculated to be \( v_w = 0.27 \, c \), characteristic of a deflagration mode. We then compute the gravitational wave spectrum \( \Omega_{\text{GW}}(f) h^2 \) from the three principal sources—scalar field bubble collisions \( (\Omega_\phi) \), sound waves in the post-collision plasma \( (\Omega_{\text{sw}}) \), and magnetohydrodynamic turbulence \( (\Omega_{\text{turb}}) \)—using the most advanced hydrodynamic simulations and envelope approximations, adapted for the specific relativistic degrees of freedom \( g_* = 187 \) of the EQST-GP plasma. The total spectrum exhibits a distinct, multi-peak fingerprint: a primary peak from sound waves at \( f_{\text{sw}} = 1.87 \times 10^{-3} \, \text{Hz} \) with amplitude \( \Omega_{\text{GW, sw}} h^2 = 6.31 \times 10^{-14} \), a secondary, broader peak from turbulence at \( f_{\text{turb}} \approx 3.2 \times 10^{-3} \, \text{Hz} \) with \( \Omega_{\text{GW, turb}} h^2 \approx 1.2 \times 10^{-14} \), and a high-frequency tail from bubble collisions. Crucially, we establish a detailed discrimination strategy demonstrating that the EQST-GP signal is distinguishable from inflationary tensor modes, cosmic string networks, and generic first-order phase transitions through multi-messenger consistency with predictions for ultra-heavy Majorana gluon dark matter, Hubble tension resolution, and fundamental constant derivation. We present a comprehensive detection blueprint for LISA, demonstrating that a signal-to-noise ratio $\text{SNR} > 8$ is achievable over a 4-year mission with optimal template-based analysis, and outline how cross-correlation with future CMB B-mode polarization measurements and 21-cm cosmology observations can further isolate this signal from astrophysical foregrounds.
Posted: 20 May 2026
A Possible Connection Between Gaia DR3 Kinematics and JWST Early Massive Systems in the Context of Central-Driven Inside-Out Growth
Garen Karapetian
,Leo Byzalov
,Lazar Mahtesyan
,Martik Hovhannisyan
,Abraham Mahtessian
Posted: 20 May 2026
Fundamental Speed Theory: Hierarchical Tests on 171 SPARC Galaxies Without Dark Matter and a Unified Acceleration Scale
Raheb Ali Mohammed Saleh Aoudh
We present a mathematically rigorous formulation of the Fundamental Speed Theory (FST), a dimensionally consistent vector–tensor theory featuring a dimensionless vector field \( \nu^{\mu} \). We introduce characteristic scales \( L_0 = 10 \) kpc and \( M_0 = \hbar/(cL_0) \) and keep \( \hbar \) and \( c \) explicit throughout. In dimensionless form, the galactic field obeys
\( \frac{d^2\tilde{\nu}}{d\xi^2} + \frac{2}{\xi}\frac{d\tilde{\nu}}{d\xi} = \beta_{\mathrm{eff}}\tilde{\nu}^3 \),\( \qquad \beta_{\mathrm{eff}} \equiv -\frac{\lambda\nu_0^2}{6c_1} = 2.0\times 10^7 \ (\lambda<0). \)
We validate the theory on the SPARC sample using three primary hierarchical levels (Levels 1–3): Level 3 (zero free parameters) fits 65.7% of galaxies with mean \( \chi_{\nu}^{2}=0.809 \); Level 2 (estimated \( M, r_d \), no fitting) reaches 93.6% with mean \( \chi_{\nu}^{2}=0.347 \) for the 160 galaxies with \( \chi_{\nu}^2<3 \); and Level 1 (fitted \( M, r_d \)) fits all 171 galaxies with mean \( \chi_{\nu}^{2}=0.170 \) (91.2% with \( \chi_{\nu}^{2}<0.5 \)). We further report two derived formulations: Level 4 (coefficient-free) and Level 5 (unified), the latter showing that the field parameters unify into a single acceleration scale
\( A_0 = \frac{(c_1+c_3)\nu_0^2 c^2}{L_0} = 2.42\times 10^{-10}\ \mathrm{m/s^2}, \)
which reproduces the full formulation identically for all galaxies. A full three-dimensional numerical experiment with disk-like (anisotropic) boundary forcing confirms that the converged 3D field profiles and rotation-curve fits remain essentially unchanged relative to the 1D quasi-spherical approximation for the tested cases. We also perform an explicit sign-convention robustness check: running the full pipeline with the alternative (negative-sign) convention yields identical fits within numerical tolerance when implemented consistently. Solar System constraints are satisfied because the relevant acceleration arises from the galactic field gradient, giving a local FST acceleration at Earth of \( \sim 8\times 10^{-15} \) of the Newtonian value. All code is archived on Zenodo, and supplementary materials (including complete fit results and both sign-convention implementations) are provided. Extension of FST to cosmological scales is left as future work.
We present a mathematically rigorous formulation of the Fundamental Speed Theory (FST), a dimensionally consistent vector–tensor theory featuring a dimensionless vector field \( \nu^{\mu} \). We introduce characteristic scales \( L_0 = 10 \) kpc and \( M_0 = \hbar/(cL_0) \) and keep \( \hbar \) and \( c \) explicit throughout. In dimensionless form, the galactic field obeys
\( \frac{d^2\tilde{\nu}}{d\xi^2} + \frac{2}{\xi}\frac{d\tilde{\nu}}{d\xi} = \beta_{\mathrm{eff}}\tilde{\nu}^3 \),\( \qquad \beta_{\mathrm{eff}} \equiv -\frac{\lambda\nu_0^2}{6c_1} = 2.0\times 10^7 \ (\lambda<0). \)
We validate the theory on the SPARC sample using three primary hierarchical levels (Levels 1–3): Level 3 (zero free parameters) fits 65.7% of galaxies with mean \( \chi_{\nu}^{2}=0.809 \); Level 2 (estimated \( M, r_d \), no fitting) reaches 93.6% with mean \( \chi_{\nu}^{2}=0.347 \) for the 160 galaxies with \( \chi_{\nu}^2<3 \); and Level 1 (fitted \( M, r_d \)) fits all 171 galaxies with mean \( \chi_{\nu}^{2}=0.170 \) (91.2% with \( \chi_{\nu}^{2}<0.5 \)). We further report two derived formulations: Level 4 (coefficient-free) and Level 5 (unified), the latter showing that the field parameters unify into a single acceleration scale
\( A_0 = \frac{(c_1+c_3)\nu_0^2 c^2}{L_0} = 2.42\times 10^{-10}\ \mathrm{m/s^2}, \)
which reproduces the full formulation identically for all galaxies. A full three-dimensional numerical experiment with disk-like (anisotropic) boundary forcing confirms that the converged 3D field profiles and rotation-curve fits remain essentially unchanged relative to the 1D quasi-spherical approximation for the tested cases. We also perform an explicit sign-convention robustness check: running the full pipeline with the alternative (negative-sign) convention yields identical fits within numerical tolerance when implemented consistently. Solar System constraints are satisfied because the relevant acceleration arises from the galactic field gradient, giving a local FST acceleration at Earth of \( \sim 8\times 10^{-15} \) of the Newtonian value. All code is archived on Zenodo, and supplementary materials (including complete fit results and both sign-convention implementations) are provided. Extension of FST to cosmological scales is left as future work.
Posted: 19 May 2026
Foundations of an Eternal Universe—Toward an Eternal Universe Model (I)
Golden Nyambuya
Posted: 18 May 2026
Where is Everybody? The Causal Disconnect and the Limits of Interstellar Detectability
Sangam Banerjee
Posted: 18 May 2026
A Phenomenological Model of the Magnetic Field Re-Emergence in Magnetars and Discrepancy Between the Kinematic and Characteristic Ages
Rostislav D. Nikandrov
,Sergei B. Popov
Posted: 14 May 2026
On General Covariance
Shoude Li
Posted: 13 May 2026
Further Insights into the Universe Evolution Problem
John G. Bartzis
Posted: 13 May 2026
Composite Universal Constants Combining 2–5 Known Constants Reveal Latent Connections Between Disparate Physical Regimes and the Role of Dimensionless Constants in Systems of Units
Dimitris M. Christodoulou
,Demosthenes Kazanas
,Silas G. T. Laycock
Posted: 08 May 2026
A Poisson-Shot Interpretation of the CMB Temperature in RH = ct Cosmology
Espen Gaarder Haug
Posted: 07 May 2026
The Onset of the Relativistic Ruler: Metric Emergence and the Pre-Relativistic Boundary of the GERT Universe
Veronica Padilha Dutra
Posted: 07 May 2026
Spontaneously Broken Hidden \( SU(N) \) Sector via TeV-Scale - Chiral Anomaly
Ahmed Ali
Posted: 07 May 2026
GERT and Black Holes: Macroscopic Phase Transition in the Hyperdilute Universe
Veronica Padilha Dutra
Posted: 07 May 2026
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