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

2014/05/31 by Zhiying Zhu, Shao-Jun Zhang, C. E. Pellicer +2 · 1 citation
Physics and Astronomy · #gr-qc #hep-th

paper · pdf · doi:10.1103/physrevd.90.044042

published as Phys. Rev. D 90, 044042 (2014) · 15pages, 13figures, final version for journal publication

arxiv created 2014/08/31 · arxiv updated 2015/06/19

Abstract

We find a new instability in the four-dimensional Reissner-Nordstrom-de Sitter black holes against charged scalar perturbations with vanishing angular momentum, l=0. We show that such an instability is caused by superradiance. The instability does not occur for an larger angular index, as explicitely proven for l=1. Our results are obtained from a numerical investigation of the time domain profiles of the perturbations.

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