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题名: Generalized Misner-Sharp energy in f(R) gravity
作者: 蔡荣根 ;  Cao, Li-Ming ;  Hu, Ya-Peng ;  Ohta, Nobuyoshi
刊名: PHYSICAL REVIEW D
出版日期: 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
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; Hu, YP] 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; [Hu, YP] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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.
资助者: NSFC, China[10525060, 108215504, 10975168]; MSTC, China[2010CB833004]; JSPS[20540283]; Japan-U. K. Research Cooperative Program
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000272313300051
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5215
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,Hu, Ya-Peng,et al. Generalized Misner-Sharp energy in f(R) gravity[J]. PHYSICAL REVIEW D,2009,80(10):-.
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