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Primordial Black Holes in the Pre-Inflationary Period, the Probabilities of Their Occurrence Taking Into Account Quantum-Gravitational Corrections, and Some Cosmological Implications
Version 1
: Received: 26 May 2024 / Approved: 27 May 2024 / Online: 27 May 2024 (07:39:15 CEST)
How to cite:
Shalyt-Margolin, A. Primordial Black Holes in the Pre-Inflationary Period, the Probabilities of Their Occurrence Taking Into Account Quantum-Gravitational Corrections, and Some Cosmological Implications. Preprints2024, 2024051688. https://doi.org/10.20944/preprints202405.1688.v1
Shalyt-Margolin, A. Primordial Black Holes in the Pre-Inflationary Period, the Probabilities of Their Occurrence Taking Into Account Quantum-Gravitational Corrections, and Some Cosmological Implications. Preprints 2024, 2024051688. https://doi.org/10.20944/preprints202405.1688.v1
Shalyt-Margolin, A. Primordial Black Holes in the Pre-Inflationary Period, the Probabilities of Their Occurrence Taking Into Account Quantum-Gravitational Corrections, and Some Cosmological Implications. Preprints2024, 2024051688. https://doi.org/10.20944/preprints202405.1688.v1
APA Style
Shalyt-Margolin, A. (2024). Primordial Black Holes in the Pre-Inflationary Period, the Probabilities of Their Occurrence Taking Into Account Quantum-Gravitational Corrections, and Some Cosmological Implications. Preprints. https://doi.org/10.20944/preprints202405.1688.v1
Chicago/Turabian Style
Shalyt-Margolin, A. 2024 "Primordial Black Holes in the Pre-Inflationary Period, the Probabilities of Their Occurrence Taking Into Account Quantum-Gravitational Corrections, and Some Cosmological Implications" Preprints. https://doi.org/10.20944/preprints202405.1688.v1
Abstract
In the last decades the primordial black holes ({\bf pbhs}) have attracted much attention of cosmologists and astrophysicists. This is associated with origination of such black holes in the early Universe as a result of a gravitational collapse of the high-density matter, making them natural ''detectors'' of the processes involved. In inflationary cosmology of particular importance are {\bf pbhs} originated during the pre-inflationary period. And, since they are small and generated at the energies close to the Planck energies, for them we should take into consideration the quantum-gravitational corrections ({\bf qgcs}). In turn, these corrections change (shift) the inflationary parameters. The paper presents a study of the above-mentioned shifts with regard to these corrections for different scenarios. It is shown that probabilities of occurrence of the {\bf pbhs} under study with due regard for the given {\bf qgcs} are rising as compared to the semiclassical consideration. Besides, high-energy deformations of Friedmann Equations created on the basis of these corrections have been derived for different patterns. Conclusion contains the general remarks concerning the above-mentioned {\bf qgcs} for cosmological parameters and perturbations due to inflation; the steps for their investigation are outlined and the key problems of such a study are formulated.
Keywords
keyprimordial black holes; inflationary cosmology; quantum-gravitational corrections
Subject
Physical Sciences, Theoretical Physics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
