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Cai, Rong-Gen; Cao, Li-Ming; Ohta, Nobuyoshi; Cai, RG , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
Notes on entropy force in general spherically symmetric spacetimes
发表期刊PHYSICAL REVIEW D
关键词Black-hole Evaporation Apparent Horizon Field-equations Thermodynamic Behavior 1st Law Braneworld Gravity
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.
2010
ISSN1550-7998
卷号81期号:8页码:-
学科领域Physics
收录类别SCI
项目资助者NSFC, China[10821504, 10975168]; Ministry of Science and Technology of China national basic research[2010CB833004]; JSPS[20540283, 21.09225]; Japan-U. K. Research Cooperative Program ; NSFC, China[10821504, 10975168]; Ministry of Science and Technology of China national basic research[2010CB833004]; JSPS[20540283, 21.09225]; Japan-U. K. Research Cooperative Program ; NSFC, China[10821504, 10975168]; Ministry of Science and Technology of China national basic research[2010CB833004]; JSPS[20540283, 21.09225]; Japan-U. K. Research Cooperative Program ; NSFC, China[10821504, 10975168]; Ministry of Science and Technology of China national basic research[2010CB833004]; JSPS[20540283, 21.09225]; Japan-U. K. Research Cooperative Program
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被引频次:54[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5123
专题理论物理所科研产出_SCI论文
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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Cai, Rong-Gen,Cao, Li-Ming,Ohta, Nobuyoshi,et al. Notes on entropy force in general spherically symmetric spacetimes[J]. PHYSICAL REVIEW D,2010,81(8):-.
APA Cai, Rong-Gen,Cao, Li-Ming,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 Cai, Rong-Gen,et al."Notes on entropy force in general spherically symmetric spacetimes".PHYSICAL REVIEW D 81.8(2010):-.
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