Holography, degenerate horizons and entropy
High Energy Physics - Theory
2009-10-31 v2
Abstract
We show that a realization of the correspondence AdS_2/CFT_1 for near extremal Reissner-Nordstrom black holes in arbitrary dimensional Einstein-Maxwell gravity exactly reproduces, via Cardy's formula, the deviation of the Bekenstein-Hawking entropy from extremality. We also show that this mechanism is valid for Schwarzschild-de Sitter black holes around the degenerate solution dS_2xS^n. These results reinforce the idea that the Bekenstein-Hawking entropy can be derived from symmetry principles.
Keywords
Cite
@article{arxiv.hep-th/9911091,
title = {Holography, degenerate horizons and entropy},
author = {Diego J. Navarro and Jose Navarro-Salas and Pedro Navarro},
journal= {arXiv preprint arXiv:hep-th/9911091},
year = {2009}
}
Comments
LaTex file, 23 pages, 1 figure; several corrections, to appear in Nucl. Phys. B