Entropy of Einstein-Maxwell-dilaton-axion black holes

被引：7

作者：

Gao, CJ ^{[1
]}

Shen, YG

机构：

[1] Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China

[2] Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China

[3] Chinese Acad Sci, Inst Theoret Phys, Beijing, Peoples R China

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2003年 / 42卷 / 04期

基金：

中国国家自然科学基金;

关键词：

black hole entropy; brick-wall model; superradiant modes;

D O I：

10.1023/A:1024414717167

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The entropy of Einstein - Maxwell- dilaton - axion black holes is calculated by using the improved brick-wall model. Taking into account of the statistical physics, we propose not to consider the superradiant modes. The result shows that the nonsuperradiant modes do contribute exactly the area-law entropy for extreme black hole. Moreover, our cutoff epsilon which does not require an angular cut-off delta is independent of angle theta. As for the extreme black hole, we found that its entropy is zero.

引用

页码：817 / 825

页数：9

共 18 条

[1]

Chandrasekhar S., 1983, MATH THEORY BLACK HO

[2] Thermodynamics of scalar fields in Kerr's geometry [J].

Cognola, G .

PHYSICAL REVIEW D, 1998, 57 (10) :6292-6296

[3] BLACK-HOLE ENTROPY WITHOUT BRICK WALLS [J].

DEMERS, JG ;

LAFRANCE, R ;

MYERS, RC .

PHYSICAL REVIEW D, 1995, 52 (04) :2245-2253

[4] Entropy of the Dirac field in Schwarzschild-de Sitter space-time via the membrane model [J].

Gao, CJ ;

Liu, WB .

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2000, 39 (09) :2221-2229

[5] Relation between black hole entropy and quantum field spin [J].

Gao, CJ ;

Shen, YG .

PHYSICAL REVIEW D, 2002, 65 (08) :840431-840435

[6] CLASS OF STATIONARY AXISYMMETRICAL SOLUTIONS OF THE EINSTEIN-MAXWELL-DILATON-AXION FIELD-EQUATIONS [J].

GARCIA, A ;

GALTSOV, D ;

KECHKIN, O .

PHYSICAL REVIEW LETTERS, 1995, 74 (08) :1276-1279

[7] ENTROPY IN DILATONIC BLACK-HOLE BACKGROUND [J].

GHOSH, A ;

MITRA, P .

PHYSICAL REVIEW LETTERS, 1994, 73 (19) :2521-2523

[8] TOPOLOGY, ENTROPY, AND WITTEN INDEX OF DILATON BLACK-HOLES [J].

GIBBONS, GW ;

KALLOSH, RE .

PHYSICAL REVIEW D, 1995, 51 (06) :2839-2862

[9] Entropy in the Kerr-Newman black hole [J].

Ho, J ;

Kim, WT ;

Park, YJ ;

Shin, H .

CLASSICAL AND QUANTUM GRAVITY, 1997, 14 (09) :2617-2625

[10] Entropy of a quantum field in rotating black holes [J].

Lee, MH ;

Kim, JK .

PHYSICAL REVIEW D, 1996, 54 (06) :3904-3914

← 1 2 →