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

被引:9
作者
Akbar, M. [2 ]
Saifullah, K. [1 ]
机构
[1] Quaid I Azam Univ, Dept Math, Islamabad, Pakistan
[2] Natl Univ Sci & Technol, Ctr Adv Math & Phys, Rawalpindi, Pakistan
关键词
Black holes; Quantum corrections; Entropy; Thermodynamics; FIELD-EQUATIONS; SCALAR FIELD; THERMODYNAMICS; HORIZON;
D O I
10.1007/s10714-010-0962-z
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study 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-Nordstrom and anti-de Sitter-Schwarzschild black holes follow easily. This procedure gives us the modified area law as well.
引用
收藏
页码:933 / 943
页数:11
相关论文
共 21 条
[1]   Charged rotating BTZ black hole and thermodynamic behavior of field equations at its horizon [J].
Akbar, M. ;
Siddiqui, Azad A. .
PHYSICS LETTERS B, 2007, 656 (4-5) :217-220
[2]   Thermodynamic interpretation of field equations at horizon of BTZ black hole [J].
Akbar, M. .
CHINESE PHYSICS LETTERS, 2007, 24 (05) :1158-1161
[3]  
Akbar M., ARXIV10023581
[4]   BLACK-HOLE IN 3-DIMENSIONAL SPACETIME [J].
BANADOS, M ;
TEITELBOIM, C ;
ZANELLI, J .
PHYSICAL REVIEW LETTERS, 1992, 69 (13) :1849-1851
[5]   Quantum tunneling beyond semiclassical approximation [J].
Banerjee, Rabin ;
Majhi, Bibhas Ranjan .
JOURNAL OF HIGH ENERGY PHYSICS, 2008, (06)
[6]  
Carroll S, 2004, INTRO GEN RELATIVITY
[7]   CHARGED BLACK-HOLES IN STRING THEORY [J].
GARFINKLE, D ;
HOROWITZ, GT ;
STROMINGER, A .
PHYSICAL REVIEW D, 1991, 43 (10) :3140-3143
[8]   Log correction to the black hole area law [J].
Ghosh, A ;
Mitra, P .
PHYSICAL REVIEW D, 2005, 71 (02) :027502-1
[9]   BLACK-HOLE EXPLOSIONS [J].
HAWKING, SW .
NATURE, 1974, 248 (5443) :30-31
[10]   CORRECTION [J].
HAWKING, SW .
COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1976, 46 (02) :206-206