Generalized Misner-Sharp energy in f(R) gravity

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	Generalized Misner-Sharp energy in f(R) gravity
	Cai, Rong-Gen; Cao, Li-Ming; Hu, Ya-Peng; Ohta, Nobuyoshi; Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
刊名	PHYSICAL REVIEW D
	2009
卷号	80 期号:10 页码:-
关键词	Scalar-tensor Gravity Black-hole Dynamics Equation-of-state Apparent Horizon 1st Law Field-equations Thermodynamic Behavior Gravitational Energy Frw Universe Relativity
ISSN号	1550-7998
英文摘要	We study generalized Misner-Sharp energy in f(R) gravity in a spherically symmetric space-time. We find that unlike the cases of Einstein gravity and Gauss-Bonnet gravity, the existence of the generalized Misner-Sharp energy depends on a constraint condition in the f(R) gravity. When the constraint condition is satisfied, one can define a generalized Misner-Sharp energy, but it cannot always be written in an explicit quasilocal form. However, such a form can be obtained in a Friedmann-Robertson-Walker universe and for static spherically symmetric solutions with constant scalar curvature. In the Friedmann-Robertson-Walker universe, the generalized Misner-Sharp energy is nothing but the total matter energy inside a sphere with radius r, which acts as the boundary of a finite region under consideration. The case of scalar-tensor gravity is also briefly discussed.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000272313300051
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5215]
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, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Cai, Rong-Gen,Cao, Li-Ming,Hu, Ya-Peng,et al. Generalized Misner-Sharp energy in f(R) gravity[J]. PHYSICAL REVIEW D,2009,80(10):-.
APA	Cai, Rong-Gen,Cao, Li-Ming,Hu, Ya-Peng,Ohta, Nobuyoshi,&Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China.(2009).Generalized Misner-Sharp energy in f(R) gravity.PHYSICAL REVIEW D,80(10),-.
MLA	Cai, Rong-Gen,et al."Generalized Misner-Sharp energy in f(R) gravity".PHYSICAL REVIEW D 80.10(2009):-.