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题名: Entropy of the isolated horizon from the surface term of gravitational action
作者: Zhang, CY ;  Tian, Y ;  Wu, XN ;  Zhang, SJ
刊名: CLASSICAL AND QUANTUM GRAVITY
出版日期: 2014
卷号: 31, 期号:19, 页码:195002
关键词: VACUUM FIELD-EQUATIONS ;  INITIAL VALUE-PROBLEM ;  GEOMETRY ;  GRAVITY
学科分类: Physics
DOI: 10.1088/0264-9381/31/19/195002
通讯作者: Zhang, CY (reprint author), Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China.
部门归属: [Zhang, Cheng-Yong ;  Zhang, Shao-Jun] Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China ;  [Tian, Yu] Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China ;  [Wu, Xiao-Ning] Chinese Acad Sci, Acad Math & Syst Sci, Inst Math, Beijing 100190, Peoples R China ;  [Tian, Yu ;  Wu, Xiao-Ning] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China ;  [Wu, Xiao-Ning] Chinese Acad Sci, Hua Loo Keng Key Lab Math, Beijing 100190, Peoples R China
英文摘要: Starting from the surface term of gravitational action, one can construct a Virasoro algebra with central extension, with which the horizon entropy can be derived using the Cardy formula. This approach provides a new routine for calculating and interpreting the horizon entropy. In this paper, we generalize this approach to a more general case, the isolated horizon, which contains non-stationary spacetimes beyond stationary ones. By imposing appropriate boundary conditions near the horizon, the full set of diffeomorphisms is restricted to a subset where the corresponding Noether charges form a Virasoro algebra with central extension. Then by using the Cardy formula, we can derive the entropy of the isolated horizon.
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000343411400002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15624
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Zhang, CY,Tian, Y,Wu, XN,et al. Entropy of the isolated horizon from the surface term of gravitational action[J]. CLASSICAL AND QUANTUM GRAVITY,2014,31(19):195002.
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