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题名: Entropy function and the attractor mechanism for spherically symmetric extremal black holes
作者: 蔡荣根 ;  Cao, Li-Ming
刊名: PHYSICAL REVIEW D
出版日期: 2007
卷号: 76, 期号:6, 页码:-
关键词: NOETHER CHARGE ;  MACROSCOPIC ENTROPY ;  AREA
学科分类: Physics
通讯作者: Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Grad Sch Chinese Acad Sci, Beijing 100039, Peoples R China
英文摘要: In this paper we elaborate on the relation between the entropy formula of Wald and the "entropy function" method proposed by Sen. For spherically symmetric extremal black holes, it is shown that the expression of extremal black hole entropy given by Sen can be derived from the general entropy definition of Wald, without the help of the treatment of rescaling the AdS(2) part of the near horizon geometry of extremal black holes. In our procedure, we only require that the surface gravity approaches to zero, and it is easy to understand the Legendre transformation of f, the integration of Lagrangian density on the horizon, with respect to the electric charges. Since the Noether charge form can be defined in an "off-shell" form, we define a corresponding entropy function, with which one can discuss the attractor mechanism for extremal black holes with scalar fields.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000249786900048
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5666
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Cai, Rong-Gen,Cao, Li-Ming. Entropy function and the attractor mechanism for spherically symmetric extremal black holes[J]. PHYSICAL REVIEW D,2007,76(6):-.
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