ECT - Artigos publicados em periódicos

Navegar

Agora exibindo 1 - 1 de 1

Stability of Reissner-Nordström black hole in de Sitter background under charged scalar perturbation
(APS PHYSICAL, 2014-08-15) Oliveira, Carlos Eduardo Pellicer de; Zhang, Shao-Jun; Zhu, Zhiying; Wang, Bin; Abdalla, Elcio
We find a newinstability in the four-dimensional Reissner-Nordström–de Sitter black holes against charged scalar perturbations with vanishing angular momentum, l ¼ 0. We show that such an instability is caused by superradiance. The instability does not occur for a larger angular index, as explicitly proved for l ¼ 1. Our results are obtained from a numerical investigation of the time-domain profiles of the perturbations