中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Notes on entropy force in general spherically symmetric spacetimes

文献类型:期刊论文

作者Cao, Li-Ming; Cai, Rong-Gen; Ohta, Nobuyoshi; Cai, RG , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
刊名PHYSICAL REVIEW D
出版日期2010
卷号81期号:8页码:-
关键词Black-hole Evaporation Apparent Horizon Field-equations Thermodynamic Behavior 1st Law Braneworld Gravity
ISSN号1550-7998
英文摘要In a recent paper [arXiv:1001.0785], Verlinde has shown that the Newton gravity appears as an entropy force. In this paper we show how gravity appears as entropy force in Einstein's equation of gravitational field in a general spherically symmetric spacetime. We mainly focus on the trapping horizon of the spacetime. We find that when matter fields are absent, the change of entropy associated with the trapping horizon indeed can be identified with an entropy force. When matter fields are present, we see that heat flux of matter fields also leads to the change of entropy. Applying arguments made by Verlinde and Smolin, respectively, to the trapping horizon, we find that the entropy force is given by the surface gravity of the horizon. The cases in the untrapped region of the spacetime are also discussed.
学科主题Physics
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WOS记录号WOS:000277205000067
公开日期2012-08-02
源URL[http://ir.itp.ac.cn/handle/311006/5123]  
专题理论物理研究所_理论物理所1978-2010年知识产出
通讯作者Cai, RG , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
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Cao, Li-Ming,Cai, Rong-Gen,Ohta, Nobuyoshi,et al. Notes on entropy force in general spherically symmetric spacetimes[J]. PHYSICAL REVIEW D,2010,81(8):-.
APA Cao, Li-Ming,Cai, Rong-Gen,Ohta, Nobuyoshi,&Cai, RG , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.(2010).Notes on entropy force in general spherically symmetric spacetimes.PHYSICAL REVIEW D,81(8),-.
MLA Cao, Li-Ming,et al."Notes on entropy force in general spherically symmetric spacetimes".PHYSICAL REVIEW D 81.8(2010):-.

入库方式: OAI收割

来源:理论物理研究所

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