中国物理B ›› 2019, Vol. 28 ›› Issue (12): 120401-120401.doi: 10.1088/1674-1056/ab4e80

• GENERAL • 上一篇    下一篇

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

Yi-Huan Wei(魏益焕)   

  1. Department of Physics, Bohai University, Jinzhou 121000, China
  • 收稿日期:2019-07-31 修回日期:2019-09-23 出版日期:2019-12-05 发布日期:2019-12-05
  • 通讯作者: Yi-Huan Wei E-mail:yihuanwei@126.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11504027 and 11847011).

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

Yi-Huan Wei(魏益焕)   

  1. Department of Physics, Bohai University, Jinzhou 121000, China
  • Received:2019-07-31 Revised:2019-09-23 Online:2019-12-05 Published:2019-12-05
  • Contact: Yi-Huan Wei E-mail:yihuanwei@126.com
  • Supported by:
    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.

关键词: regular nonlinear electrodynamics (NED) spacetime, NED black hole with electric charge, first law of thermodynamics, Smarr formula

Abstract: 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.

Key words: regular nonlinear electrodynamics (NED) spacetime, NED black hole with electric charge, first law of thermodynamics, Smarr formula

中图分类号:  (Quantum aspects of black holes, evaporation, thermodynamics)

  • 04.70.Dy
98.80.-k (Cosmology) 98.80.Es (Observational cosmology (including Hubble constant, distance scale, cosmological constant, early Universe, etc))