Magnetically charged regular black hole in a model of nonlinear electrodynamics

Abstract

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.

12 pages, 5 figures

References in corpus (5)

• Higher-dimensional charged black holes solutions with a nonlinear electrodynamics source
• Vacuum magnetic linear birefringence using pulsed fields: the BMV experiment
• Noncommutative Schwarzschild Black Hole and Area Law
• Thermodynamics of regular black hole
• Regular black hole in three dimensions

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