期刊
NUCLEAR PHYSICS B
卷 918, 期 -, 页码 115-128出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysb.2017.02.020
关键词
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资金
- National Natural Science Foundation of China [11205125]
- Sichuan Province Science Foundation [2014JQ0040]
- Innovative Research Team in China West Normal University [438061]
We modify the first laws of thermodynamics of a Reissner-Nordstrom anti-de Sitter black hole and a pure de Sitter space-time by the surface tensions. The corresponding Smarr relations are obeyed. The cosmological constants are first treated as fixed constants, and then as variables associated to the pressures. For the black hole, the law is written as delta E = T delta S - sigma delta A when the cosmological constant is fixed, where E is the Misner-Sharp mass and sigma is the surface tension. Adopting the varied constant, we modify the law as delta E-0 = T delta S - sigma(eff)delta A + V delta P, where E-0 = M - Q(2)/2r(+) is the enthalpy. The thermodynamical properties are investigated. For the de Sitter space-time, the expressions of the modified laws are different from these of the black hole. The differential way to derive the law is discussed. (C) 2017 The Author(s). Published by Elsevier B.V.
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