Entropy and topology of the Kerr-de Sitter black hole

被引：10

作者：

Chen, SB

Jing, JL ^{[1
]}

机构：

[1] Hunan Normal Univ, Inst Phys, Changsha 410081, Peoples R China

[2] Hunan Normal Univ, Dept Phys, Changsha 410081, Peoples R China

来源：

CHINESE PHYSICS | 2002年 / 11卷 / 01期

关键词：

entropy of black hole; constrained gravitational instanton; Euler number;

D O I：

10.1088/1009-1963/11/1/318

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By using the path integral method of Gibbons and Hawking, the entropy of the Kerr-de Sitter black hole is investigated under the microcanonical ensemble. We find that the entropy is one eighth the sum of the products of the Euler number of its cosmological horizon and event horizon with their respective areas. It is shown that the origin of the entropy of the black hole is related to the topology of its instanton.

引用

页码：87 / 90

页数：4

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