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Charged Fermions and Strong Cosmic Censorship
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It was recently shown that the Strong Cosmic Censorship conjecture might be violated for near-extremally-charged black holes in de Sitter space. Here, we extend our study to charged fermionic fields in the exterior of Reissner-Nordstr\"{o}m-de Sitter black holes. We identify three families of modes; one related to the photon sphere, a second related to the de Sitter horizon and a third which dominates near extremality. We show that for near-extremally-charged black holes there is a critical fermionic charge below which Strong Cosmic Censorship may potentially be violated. Surprisingly enough, as one approaches extremality even more, violation of Strong Cosmic Censorship may occur even beyond the critical fermionic charge.
Forward citations
Cited by 3 Pith papers
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Scalar perturbations and strong cosmic censorship in a regular ABGB-de Sitter black hole spacetime
In regular ABGB-de Sitter black holes, near-extremal scalar perturbations decay fast enough (β>1/2) to violate strong cosmic censorship, and adding scalar mass can push the regularity parameter past β=1.
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Strong Cosmic Censorship in Horndeski Theory
For scalar fields with non-minimal derivative coupling on Reissner-Nordström-de Sitter black holes, strong cosmic censorship is violated only when the ratio β exceeds 3/2 instead of 1/2, and small near-extremal black ...
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Superradiant instability of charged scalar fields in higher-dimensional Reissner-Nordstr\"om-de Sitter black holes
Charged scalar perturbations of higher-dimensional Reissner-Nordström-de Sitter black holes are superradiantly unstable, with the growth rate increasing with spacetime dimension.
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