Thermal properties of regular black hole with electric charge in Einstein gravity coupled to nonlinear electrodynamics  

作　　者：Yi-Huan Wei 魏益焕(Department of Physics, Bohai University)

机构地区：[1]Department of Physics,Bohai University,Jinzhou 121000,China

出　　处：《Chinese Physics B》2019年第12期113-117,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11504027 and 11847011)

摘　　要：We propose a regular spherically symmetric spacetime solution with three parameters in Einstein gravity coupled to nonlinear electrodynamics(NED), which describes the NED black hole with electric charge. It is found that the system enclosed by the horizon of NED spacetime satisfies the first law of thermodynamics. In order to obtain the NED spacetime with only electric charge, the case of two parameters taking the same value is considered. In this case, we express the mass of the NED spacetime as a function of the entropy and electric charge of the NED black hole, give the Smarr-like formula and the approximate Smarr formula for the mass of NED spacetime.We propose a regular spherically symmetric spacetime solution with three parameters in Einstein gravity coupled to nonlinear electrodynamics(NED), which describes the NED black hole with electric charge. It is found that the system enclosed by the horizon of NED spacetime satisfies the first law of thermodynamics. In order to obtain the NED spacetime with only electric charge, the case of two parameters taking the same value is considered. In this case, we express the mass of the NED spacetime as a function of the entropy and electric charge of the NED black hole, give the Smarr-like formula and the approximate Smarr formula for the mass of NED spacetime.

关 键 词：regular nonlinear electrodynamics(NED) spacetime NED black hole with electric charge first law of thermodynamics Smarr formula 

分 类 号：O41[理学—理论物理]