Exact multiblack hole spacetimes in Einstein-ModMax theory

Abstract

Exact solutions describing multiple, electrically charged black holes (BHs) in a model of nonlinear electrodynamics (NLE) minimally coupled to Einstein's gravity are presented. The NLE model is ModMax theory, that has attracted much attention due to its duality and conformal invariance, features shared with standard (linear) electrodynamics. In the nonextremal case, the solution has conical singularities, similarly to the multi Reissner-Nordström solution in Einstein-Maxwell theory. In the extremal case the solution is regular on and outside the event horizon; it is isometric to the Majumdar-Papapetrou solution, although the individual BHs have a nonunitary charge to mass ratio, due to screening effects. Using the ModMax electromagnetic duality invariance, magnetically charged and dyonic generalizations are also obtained. Finally, we construct multi-BH solutions with a positive cosmological constant.

7 pages (two columns), v2: version accepted for publication in Physical Review D

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Cited by in corpus (7)

• Thermodynamics of charged and accelerating black holes
• Scattering and absorption of massless scalar waves by a ModMax black hole
• Conundrum of regular black holes with nonlinear electromagnetic fields
• Thermal and Optical Signatures of Einstein-Dyonic ModMax Black Holes with GUP and Plasma Modifications
• Self-dual instantons and gravitating dyons in non-Abelian ModMax theory
• Thermodynamics and optical aspects of ModMax black holes in higher order curvature gravity with quintessence dark energy
• Nonconformally Ricci-flat instantons in Conformal Gravity with and without nonlinear matter fields