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题名: Entropy relations and the application of black holes with the cosmological constant and Gauss-Bonnet term
作者: Xu, W;  Wang, J;  Meng, XH
刊名: PHYSICS LETTERS B
出版日期: 2015
卷号: 742, 期号:0, 页码:225-230
关键词: (A)dS black hole ;  First law of thermodynamics ;  Smarr relation ;  Thermodynamic bound ;  Thermodynamic relation
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1016/j.physletb.2015.01.018
通讯作者: Xu, W (reprint author), Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China.
文章类型: Article
英文摘要: Based on entropy relations, we derive the thermodynamic bound for entropy and the area of horizons for a Schwarzschild-dS black hole, including the event horizon, Cauchy horizon, and negative horizon (i.e., the horizon with negative value), which are all geometrically bound and comprised by the cosmological radius. We consider the first derivative of the entropy relations to obtain the first law of thermodynamics for all horizons. We also obtain the Smarr relation for the horizons using the scaling discussion. For the thermodynamics of all horizons, the cosmological constant is treated as a thermodynamic variable. In particular, the thermodynamics of the negative horizon are defined well in the r<0 side of space-time. This formula appears to be valid for three-horizon black holes. We also generalize the discussion to thermodynamics for the event horizon and Cauchy horizon of Gauss-Bonnet charged flat black holes because the Gauss-Bonnet coupling constant is also considered to be thermodynamic variable. These results provide further insights into the crucial role played by the entropy relations of multi-horizons in black hole thermodynamics as well as improving our understanding of entropy at the microscopic level. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: SYMMETRICAL-SOLUTIONS ;  GRAVITY ;  THERMODYNAMICS
收录类别: SCI
项目资助者: National Natural Science Foundation of China (NSFC) [11075078] ;  Research Innovation Fund of Huazhong University of Science and Technology [2014TS125]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21063
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Xu, W,Wang, J,Meng, XH. Entropy relations and the application of black holes with the cosmological constant and Gauss-Bonnet term[J]. PHYSICS LETTERS B,2015,742(0):225-230.
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