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题名: General proof of (maximum) entropy principle in Lovelock gravity
作者: Cao, LM;  Xu, JF
刊名: PHYSICAL REVIEW D
出版日期: 2015
卷号: 91, 期号:4, 页码:44029
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.91.044029
通讯作者: Xu, JF (reprint author), Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Anhui, Peoples R China.
文章类型: Article
英文摘要: We consider a static self-gravitating perfect fluid system in Lovelock gravity theory. For a spacial region on the hypersurface orthogonal to static Killing vector, by the Tolman's law of temperature, the assumption of a fixed total particle number inside the spacial region, and all of the variations (of relevant fields) in which the induced metric and its first derivatives are fixed on the boundary of the spacial region, then with the help of the gravitational and fluid equations of the theory, we can prove a theorem says that the total entropy of the fluid in this region takes an extremum value. A converse theorem can also be obtained following the reverse process of our proof. We also propose the definition of isolation quasilocally for the system and explain the physical meaning of the boundary conditions in the proof of the theorems.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: EQUATIONS ;  ENERGY ;  TENSOR ;  TERMS
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11205148, 11235010]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21091
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Cao, LM,Xu, JF. General proof of (maximum) entropy principle in Lovelock gravity[J]. PHYSICAL REVIEW D,2015,91(4):44029.
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