6533b874fe1ef96bd12d62fb

RESEARCH PRODUCT

Holography, degenerate horizons and entropy

Pedro NavarroJosé Navarro-salasD. J. Navarro

subject

PhysicsHigh Energy Physics - TheoryAstrofísicaNuclear and High Energy PhysicsGravitacióCosmologiaDegenerate energy levelsHolographyFOS: Physical scienceslaw.inventionHigh Energy Physics::TheoryGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theory (hep-th)lawEntropy (arrow of time)Mathematical physics

description

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.

10.1016/s0550-3213(00)00244-3http://hdl.handle.net/10550/33778