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题名: Black holes without mass and entropy in Lovelock gravity
作者: 蔡荣根 ;  Cao, Li-Ming ;  Ohta, Nobuyoshi
刊名: PHYSICAL REVIEW D
出版日期: 2010
卷号: 81, 期号:2, 页码:-
关键词: GAUSS-BONNET THEORY ;  EXTENDED EINSTEIN EQUATIONS ;  SYMMETRICAL-SOLUTIONS ;  THERMODYNAMICS ;  CURVATURE ;  TENSOR ;  BRANE ;  TERMS
学科分类: Physics
通讯作者: Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
部门归属: [Cai, RG] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China; [Cai, RG; Cao, LM; Ohta, N] Kinki Univ, Dept Phys, Osaka 5778502, Japan
英文摘要: We present a class of new black hole solutions in D-dimensional Lovelock gravity theory. The solutions have a form of direct product M(m) x H(n), where D m + n, H(n) is a negative constant curvature space, and the solutions are characterized by two integration constants. When m 3 and 4, these solutions reduce to the exact black hole solutions recently found by Maeda and Dadhich in Gauss-Bonnet gravity theory. We study thermodynamics of these black hole solutions. Although these black holes have a nonvanishing Hawking temperature, surprisingly, the mass of these solutions always vanishes. While the entropy also vanishes when m is odd, it is a constant determined by an Euler characteristic of (m - 2)-dimensional cross section of black hole horizon when m is even. We argue that the constant in the entropy should be thrown away. Namely, when m is even, the entropy of these black holes also should vanish. We discuss the implications of these results.
资助者: NSFC, China[10535060, 10821504, 10975168]; MSTC, China[2010CB833004]; JSPS[20540283, 21.09225]; Japan-U.K. Research Cooperative Program
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000275068900066
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5180
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,Ohta, Nobuyoshi. Black holes without mass and entropy in Lovelock gravity[J]. PHYSICAL REVIEW D,2010,81(2):-.
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