Corrections to entropy and thermodynamics of charged black hole using generalized uncertainty principle

Abstract

Recently, there has been much attention devoted to resolving the quantum corrections to the Bekenstein-Hawking (black hole) entropy, which relates the entropy to the cross-sectional area of the black hole horizon. Using generalized uncertainty principle (GUP), corrections to the geometric entropy and thermodynamics of black hole will be introduced. The impact of GUP on the entropy near the horizon of three types of black holes; Schwarzschild, Garfinkle-Horowitz-Strominger and Reissner-Nordström is determined. It is found that the logarithmic divergence in the entropy-area relation turns to be positive. The entropy $S$, which is assumed to be related to horizon's two-dimensional area, gets an additional terms, for instance $2\sqrt{\pi }\alpha \sqrt{S}$, where $\alpha$ is the GUP parameter.

23 pages, 2 figures, references updates to appear in Int. J. Mod. Phys. A

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