https://doi.org/10.1140/epjc/s10052-010-1279-5
Regular Article - Theoretical Physics
Quantum corrections to the entropy of charged rotating black holes
1
Centre for Advanced Mathematics and Physics, National University of Sciences and Technology, Rawalpindi, Pakistan
2
Department of Mathematics, Quaid-i-Azam University, Islamabad, Pakistan
* e-mail: saifullah@qau.edu.pk
Received:
12
October
2009
Revised:
11
January
2010
Published online:
9
March
2010
Hawking radiation from a black hole can be viewed as quantum tunneling of particles through the event horizon. Using this approach we provide a general framework for studying corrections to the entropy of black holes beyond semiclassical approximations. Applying the properties of exact differentials for three variables to the first law thermodynamics, we study charged rotating black holes and explicitly work out the corrections to entropy and horizon area for the Kerr–Newman and charged rotating BTZ black holes. It is shown that the results for other geometries like the Schwarzschild, Reissner-Nordström and anti-de Sitter–Schwarzschild spacetimes follow easily.
© Springer-Verlag / Società Italiana di Fisica, 2010
