Quantum corrections to the entropy of Einstein-Maxwell dilaton-axion black holes

Details Quantum corrections to the entropy of Einstein-Maxwell dilaton-axion black holes Quantum corrections to the entropy of Einstein-Maxwell dilaton-axion black holes

2010-02-20

arxiv.org/abs/1002.3901v1

Gen. Relativ. Gravit. 43 (2011) 933

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

10.1007/s10714-010-0962-z

We study the corrections to the entropy of Einstein-Maxwell dilaton-axion black holes beyond semiclassical approximations. We consider the entropy of the black hole as a state variable and derive these corrections using the exactness criteria of the first law of thermodynamics. We note that from this general frame-work the entropy corrections for "simpler" black holes like Schwarzschild, Reissner-Nordstr\"{o}m and anti-de Sitter-Schwarzschild black holes follow easily. This procedure gives us the modified area law as well.

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