The Schwarzschild singularity: a semiclassical bounce?
Aug 10, 2018
6 pages
Published in:
- Grav.Cosmol. 24 (2018) 4, 315-320
- Published: Nov 16, 2018
e-Print:
- 1808.03717 [gr-qc]
View in:
Citations per year
Abstract: (arXiv)
We discuss the opportunity that the singularity inside a Schwarzschild black hole could be replaced by a regular bounce, described as a regular minimum of the spherical radius (instead of zero) and a regular maximum of the longitudinal scale (instead of infinity) in the corresponding Kantowski-Sachs metric. Such a metric in a vicinity of the bounce is shown to be a solution to the Einstein equations with the stress-energy tensor representing vacuum polarization of quantum matter fields, described by a combination of curvature-quadratic terms in the effective action. The indefinite parameters of the model can be chosen in such a way that it remains a few orders of magnitude apart from the Planck scale (say, on the GUT scale), that is, in a semiclassical regime.Note:
- 6 pages, no figures. 5 references and some comments added
- scale: grand unified theory
- singularity: Schwarzschild
- scale: Planck
- black hole: Schwarzschild
- tensor: energy-momentum
- bounce
- semiclassical
- vacuum polarization
- Einstein equation
- effective action
References(56)
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