热门
Unified first law and the thermodynamics of the apparent horizon in the FRW universe
文献类型：期刊论文
| 作者 | Cai, Rong-Gen ; Cao, Li-Ming; Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2007 |
| 卷号 | 75期号:6页码:- |
| 关键词 | Black-hole Dynamics Gravitational Waves General Relativity Gravity Equations Entropy Energy Tensor |
| ISSN号 | 1550-7998 |
| 英文摘要 | In this paper we revisit the relation between the Friedmann equations and the first law of thermodynamics. We find that the unified first law first proposed by Hayward to treat the outertrapping horizon of a dynamical black hole can be used to the apparent horizon (a kind of inner trapping horizon in the context of the FRW cosmology) of the FRW universe. We discuss three kinds of gravity theorties: Einstein theory, Lovelock thoery, and scalar-tensor theory. In Einstein theory, the first law of thermodynamics is always satisfied on the apparent horizon. In Lovelock theory, treating the higher derivative terms as an effective energy-momentum tensor, we find that this method can give the same entropy formula for the apparent horizon as that of black hole horizon. This implies that the Clausius relation holds for the Lovelock theory. In scalar-tensor gravity, we find, by using the same procedure, the Clausius relation no longer holds. This indicates that the apparent horizon of the FRW universe in the scalar-tensor gravity corresponds to a system of nonequilibrium thermodynamics. We show this point by using the method developed recently by Eling et al. for dealing with the f(R) gravity. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000245333600043 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5780]  |
| 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, POB 2735, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Rong-Gen,Cao, Li-Ming,Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. Unified first law and the thermodynamics of the apparent horizon in the FRW universe[J]. PHYSICAL REVIEW D,2007,75(6):-. |
| APA | Cai, Rong-Gen,Cao, Li-Ming,&Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.(2007).Unified first law and the thermodynamics of the apparent horizon in the FRW universe.PHYSICAL REVIEW D,75(6),-. |
| MLA | Cai, Rong-Gen,et al."Unified first law and the thermodynamics of the apparent horizon in the FRW universe".PHYSICAL REVIEW D 75.6(2007):-. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。