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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
Generalized Misner-Sharp energy in f(R) gravity
Source PublicationPHYSICAL REVIEW D
KeywordScalar-tensor Gravity Black-hole Dynamics Equation-of-state Apparent Horizon 1st Law Field-equations Thermodynamic Behavior Gravitational Energy Frw Universe Relativity
AbstractWe 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.
2009
ISSN1550-7998
Volume80Issue:10Pages:-
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNSFC, China[10525060, 108215504, 10975168]; MSTC, China[2010CB833004]; JSPS[20540283]; Japan-U. K. Research Cooperative Program ; NSFC, China[10525060, 108215504, 10975168]; MSTC, China[2010CB833004]; JSPS[20540283]; Japan-U. K. Research Cooperative Program ; NSFC, China[10525060, 108215504, 10975168]; MSTC, China[2010CB833004]; JSPS[20540283]; Japan-U. K. Research Cooperative Program ; NSFC, China[10525060, 108215504, 10975168]; MSTC, China[2010CB833004]; JSPS[20540283]; Japan-U. K. Research Cooperative Program
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Cited Times:64[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5215
Collection理论物理所科研产出_SCI论文
Corresponding AuthorCai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
Recommended Citation
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):-.
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