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arXiv · 0707.1890

Decay of a charged scalar and Dirac fields in the Kerr-Newman-de Sitter background

R. A. Konoplya·A. Zhidenko
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Abstract

We find the quasinormal modes of the charged scalar and Dirac fields in the background of the rotating charged black holes, described by the Kerr-Newman-de Sitter solution. The dependence of the quasinormal spectrum upon the black hole parameters mass M, angular momentum a, charge Q, as well as on values of the Λ-term and field charge q is investigated. Special attention is given to the near extremal limit of the black hole charge. In particular, we find that for both scalar and Dirac fields, charged perturbations decay quicker for q>0 and slower for q<0 for values of black holes charge Q less than than some threshold value, which is close to the extremal value of charge and depend on parameters of the black holes.

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R. A. Konoplya, A. Zhidenko. 2014-10-09. Decay of a charged scalar and Dirac fields in the Kerr-Newman-de Sitter background. https://doi.org/10.1103/physrevd.76.084018

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