A frame-dependent gravitational effective action mimics a cosmological constant, but modifies the black hole horizon
General Relativity and Quantum Cosmology
2018-06-05 v1 High Energy Physics - Theory
Mathematical Physics
math.MP
Abstract
A frame dependent effective action motivated by the postulates of three-space general coordinate invariance and Weyl scaling invariance exactly mimics a cosmological constant in Robertson-Walker spacetimes. However, in a static spherically symmetric Schwarzschild-like geometry it modifies the black hole horizon structure within microscopic distances of the nominal horizon, in such a way that never vanishes. This could have important implications for the black hole "information paradox".
Keywords
Cite
@article{arxiv.1605.05217,
title = {A frame-dependent gravitational effective action mimics a cosmological constant, but modifies the black hole horizon},
author = {Stephen L. Adler},
journal= {arXiv preprint arXiv:1605.05217},
year = {2018}
}
Comments
Latex, 5 pages. First Award Essay in the 2016 Gravity Research Foundation essay competition. To be published in International Journal of Modern Physics D