2015/09/01 by Meng-Sen Ma · 67 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Black brane #Black hole (networking) #Black hole thermodynamics #Charged black hole #Cosmology and Gravitation Theories #Electromagnetic field #Field (mathematics) #Nonlinear system #Rotating black hole #gr-qc
paper · pdf · doi:10.1016/j.aop.2015.08.028
published in Annals of Physics 362, 529-537 (Elsevier BV) · 12 pages, 5 figures
openalex publication_date 2015/09/01 · arxiv created 2015/09/18 · arxiv updated 2015/09/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We obtain a magnetically charged regular black hole in general relativity. The source to the Einstein field equations is nonlinear electrodynamic field in a physically reasonable model of nonlinear electrodynamics (NED). "Physically" here means the NED model is constructed on the basis of three conditions: the Maxwell asymptotic in the weak electromagnetic field limit; the presence of vacuum birefringence phenomenon; and satisfying the weak energy condition (WEC). In addition, we analyze the thermodynamic properties of the regular black hole in two ways. According to the usual black hole thermodynamics, we calculate the heat capacity at constant charge, from which we know the smaller black hole is more stable. We also employ the horizon thermodynamics to discuss the thermodynamic quantities, especially the heat capacity at constant pressure.