Non-supersymmetric attractor with the cosmological constant

被引:2
|
作者
Cho, Jin-Ho [1 ]
Nam, Soonkeon
机构
[1] Kyung Hee Univ, Dept Phys, Res Inst Basic Sci, Seoul 130701, South Korea
[2] Sogang Univ, Ctr Quantum Space Time, Seoul 121742, South Korea
来源
关键词
black holes in string theory; black hole;
D O I
10.1088/1126-6708/2007/07/011
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
As a test for the non-supersymmetric attractor mechanism, we consider extremal Reissner-Nordstrom-(anti) de Sitter black holes. Based on the simple obervation that the near-horizon geometry of a generic extremal black hole contains two-dimensions anti-de Sitter factor even in the presence of the positive cosmological constant, we apply Ashoke Sen's entropy function method to compute the entropy of these black holes. We find the results which exactly agree with the Bekenstein-Hawking entropy. We also obtain the constant higher-order correction to the entropy due to the Gauss-Bonnet term.
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收藏
页数:14
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