We discuss the properties of the previously constructed model of a Schwarzschild black hole interior where the singularity is replaced by a regular bounce, ultimately leading to a white hole. We assume that the black hole is young enough so that the Hawking radiation may be neglected. The model is semiclassical in nature and uses as a source of gravity the effective stress-energy tensor (SET) corresponding to vacuum polarization of quantum fields, and the minimum spherical radius is a few orders of magnitude larger than the Planck length, so that the effects of quantum gravity should still be negligible. We estimate the other quantum contributions to the effective SET, caused by a nontrivial topology of spatial sections and particle production from vacuum due to a nonstationary gravitational field and show that these contributions are negligibly small as compared to the SET due to vacuum polarization. The same is shown for such classical phenomena as accretion of different kinds of matter to the black hole and its further motion to the would-be singularity. Thus, in a clear sense, our model of a semiclassical bounce instead of a Schwarzschild singularity is stable under both quantum and classical perturbations.

Authors

Number of issue

10

Language

English

Status

Published

Number

178

Volume

6

Year

2020

Organizations

^{1}VNIIMS, Ctr Gravitat & Fundamental Metrol, Ozyornaya Ul 46, Moscow 119361, Russia^{2}RUDN Univ, Peoples Friendship Univ Russia, Inst Gravitat & Cosmol, 6 Miklukho Maklaya St, Moscow 117198, Russia^{3}Natl Res Nucl Univ MEPhI, Elementary Particle Phys Dept, Kashirskoe Sh 31, Moscow 115409, Russia

Keywords

general relativity; semiclassical gravity; quantum corrections; bounce solution; Schwarzschild black hole; particle creation

Date of creation

20.04.2021

Date of change

20.04.2021

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Fiziolohichnyi zhurnal (Kiev, Ukraine : 1994).
Vol. 6.
2020.

Article

EUROPEAN RESPIRATORY JOURNAL.
EUROPEAN RESPIRATORY SOC JOURNALS LTD.
Vol. 56.
2020.