Smarr formula for BTZ black holes in general three-dimensional gravity models

被引:11
作者
Liang, Chao [1 ]
Gong, Li [1 ]
Zhang, Baocheng [1 ]
机构
[1] China Univ Geosci, Sch Math & Phys, Wuhan 430074, Peoples R China
基金
中国国家自然科学基金;
关键词
Smarr formula; BTZ black holes; 3D gravity; THERMODYNAMICS;
D O I
10.1088/1361-6382/aa552b
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Recent studies have presented the interpretation of thermodynamic enthalpy for the mass of BTZ black holes and the corresponding Smarr formula. All these are made in the background of three-dimensional (3D) general relativity. In this paper, we extend such interpretation into general 3D gravity models. It is found that the direct extension is unfeasible and some extra conditions are required to preserve both the Smarr formula and the first law of black hole thermodynamics. Thus, BTZ black hole thermodynamics enforces some constraints for general 3D gravity models, and these constraints are consistent with all previous discussions.
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页数:10
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