Yukawa Black Holes from Interacting Vacuum

Abstract

In this paper we obtain an exact solution of Einstein field equations assuming an interaction between a vacuum component and the Maxwell field. The key feature of such interaction refers to a simple stress exchange so that the electromagnetic field naturally incorporates the Yukawa potential. It is shown that the resulting spacetime thus obtained can either be a naked singularity or a black hole with an inner Cauchy horizon $R_{-}$ and an exterior event horizon $R_{+}$. For this latter configuration we examine the group velocity of test photons in the region $R>R_{+}$. Beyond a lower bound for the frequency we show that superluminal velocities arise in a neighbourhood of the event horizon and that the coupling parameter of the interaction is actually connected to a nonvanishing rest mass for the photon.

Accepted for publication in Classical and Quantum Gravity

References in corpus (5)

• Indications of a late-time interaction in the dark sector
• Kerr-Newman-AdS Black Hole In Quintessential Dark Energy
• Effect of the quintessential dark energy on weak deflection angle by Kerr-Newmann Black hole
• Vacuum dynamics in the Universe versus a rigid $\Lambda =$const
• Einstein-non-linear Maxwell-Yukawa black hole

Cited by in corpus (3)

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