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

• 来源期刊: 中国物理B（英文版）
• 关键词: regular nonlinear electrodynamics (NED) spacetime NED black hole with electric charge first law of thermodynamics Smarr formula
• 年，卷（期）: 2019,（12）
• 页码范围: 128-133
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/ab4e80

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.