paper

Stability of Reissner-Nordström black hole in de Sitter background under charged scalar perturbation

arXiv:1405.4931 · doi:10.1103/PhysRevD.90.044042

Abstract

We find a new instability in the four-dimensional Reissner-Nordstrom-de Sitter black holes against charged scalar perturbations with vanishing angular momentum, . We show that such an instability is caused by superradiance. The instability does not occur for an larger angular index, as explicitely proven for . Our results are obtained from a numerical investigation of the time domain profiles of the perturbations.

15pages, 13figures, final version for journal publication

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