Are quantization rules for horizon areas universal?
High Energy Physics - Theory
2015-06-11 v3 General Relativity and Quantum Cosmology
Abstract
Doubts have been expressed on the universality of holographic/string-inspired quantization rules for the horizon areas of stationary black holes or the products of their radii, already in simple 4-dimensional general relativity. Realistic black holes are not stationary but time-dependent. Using two examples of 4D general-relativistic spacetimes containing dynamical black holes for at least part of the time, it is shown that the quantization rules (even counting virtual horizons) cannot hold, except possibly at isolated instants of time, and do not seem to be universal.
Keywords
Cite
@article{arxiv.1208.3814,
title = {Are quantization rules for horizon areas universal?},
author = {Valerio Faraoni and Andres F. Zambrano Moreno},
journal= {arXiv preprint arXiv:1208.3814},
year = {2015}
}
Comments
One example and one figure added, two figures improved, bibliography expanded and updated. Matches the version accepted for publication in Phys. Rev. D