Quasinormal modes of regular black holes

Antonino Flachi, José P S Lemos

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

Black hole quasinormal frequencies are complex numbers that encode information on how a black hole relaxes after it has been perturbed and depend on the features of the geometry and on the type of perturbations. On the one hand, the examples studied so far in the literature focused on the case of black hole geometries with singularities in their interior. On the other hand, it is expected that quantum or classical modifications of general relativity may correct the pathological singular behavior of classical black hole solutions. Despite the fact that we do not have at hand a complete theory of quantum gravity, regular black hole solutions can be constructed by coupling gravity to an external form of matter, sometimes modeled by one form or another of nonlinear electrodynamics. It is therefore relevant to compute quasinormal frequencies for these regular solutions and see how differently, from the ordinary ones, regular black holes ring. In this paper, we take a step in this direction and, by computing the quasinormal frequencies, study the quasinormal modes of neutral and charged scalar field perturbations on regular black hole backgrounds in a variety of models.

Original languageEnglish
Article number024034
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume87
Issue number2
DOIs
Publication statusPublished - 2013 Jan 22
Externally publishedYes

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gravitation
complex numbers
perturbation
electrodynamics
relativity
scalars
rings
geometry

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Quasinormal modes of regular black holes. / Flachi, Antonino; Lemos, José P S.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 87, No. 2, 024034, 22.01.2013.

Research output: Contribution to journalArticle

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