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arXiv · 2012.07869

Spontaneous vectorization of electrically charged black holes

João M. S. Oliveira·Alexandre M. Pombo
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Abstract

In this work, we generalise the spontaneous scalarization phenomena in Einstein-Maxwell-Scalar models to a higher spin field. The result is an Einstein-Maxwell-Vector model wherein a vector field is non-minimally coupled to the Maxwell invariant by an exponential coupling function. We show that the latter guarantees the circumvention of an associated no-hair theorem when the vector field has the form of an electric field. Different than its scalar counterpart, the new spontaneously vectorized Reissner-Nordstr\"om (RN) black holes are, always, undercharged while being entropically preferable. The solution profile and domain of existence are presented and analysed.

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João M. S. Oliveira, Alexandre M. Pombo. 2020-12-14. Spontaneous vectorization of electrically charged black holes. https://doi.org/10.1103/physrevd.103.044004

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