Comment on "quasinormal modes in Schwarzschild-de Sitter spacetime: A simple derivation of the level spacing of the frequencies"

D. Batic, N. G. Kelkar, M. Nowakowski

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

It is shown here that the extraction of quasinormal modes within the first Born approximation of the scattering amplitude is mathematically not well-founded. Indeed, the constraints on the existence of the scattering amplitude integral lead to inequalities for the imaginary parts of the quasinormal mode frequencies. For instance, in the Schwarzschild case, 0≤ωI<κ (where κ is the surface gravity at the horizon) invalidates the poles deduced from the first Born approximation method, namely, ωn=inκ.

Original languageBritish English
Article number108501
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume83
Issue number10
DOIs
StatePublished - 23 May 2011

Fingerprint

Dive into the research topics of 'Comment on "quasinormal modes in Schwarzschild-de Sitter spacetime: A simple derivation of the level spacing of the frequencies"'. Together they form a unique fingerprint.

Cite this