Physical Interpretation of the Spectrum of Black Hole Quasinormal Modes

Maggiore, Michele

doi:10.1103/PhysRevLett.100.141301

Scientific article

English

Physical Interpretation of the Spectrum of Black Hole Quasinormal Modes

Contributors

Maggiore, Michele

Published in

Physical review letters, vol. 100, no. 14

Publication date

2008

Abstract

When a classical black hole is perturbed, its relaxation is governed by a set of quasinormal modes with complex frequencies ω=ωR+iωI. We show that this behavior is the same as that of damped harmonic oscillators whose real frequencies are (ω2R+ω2I)1/2, rather than simply ωR. Since, for highly excited modes, ωI≫ωR, this observation changes drastically the physical understanding of the black hole spectrum and forces a reexamination of various results in the literature. In particular, adapting a derivation by Hod, we find that the area of the horizon of a Schwarzschild black hole is quantized in units ΔA=8πl2Pl, in contrast with the original result ΔA=4log(3)l2Pl

UNIGE affiliation entities

Faculté des sciences / Section de physique / Département de physique théorique

Citation (ISO format)

MAGGIORE, Michele. Physical Interpretation of the Spectrum of Black Hole Quasinormal Modes. In: Physical review letters, 2008, vol. 100, n° 14. doi: 10.1103/PhysRevLett.100.141301

Article (Published version)

Identifiers

PID : unige:35667
DOI : 10.1103/PhysRevLett.100.141301

Journal ISSN

0031-9007

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Physical Interpretation of the Spectrum of Black Hole Quasinormal Modes

Contributors

Published in

Publication date

Abstract

UNIGE affiliation entities

Citation (ISO format)

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Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation