Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2004-08-16
Class.Quant.Grav. 21 (2004) 5317-5332
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
20 pages, in Revtex; (v2) some new references and minor changes to the text; (v3) some clarity added to Introduction and new r
Scientific paper
10.1088/0264-9381/21/23/002
There has been some recent speculation that a connection may exist between the quasinormal-mode spectra of highly damped black holes and the fundamental theory of quantum gravity. This notion follows from a conjecture by Hod that the real part of the highly damped mode frequencies can be used to calibrate the semi-classical level spacing in the black hole quantum area spectrum. However, even if the level spacing can be fixed in this manner, it still remains unclear whether this implies a physically significant "duality" or merely a numerical coincidence. This tapestry of ideas serves as the motivation for the current paper. We utilize the "monodromy approach" to calculate the quasinormal-mode spectra for a generic class of black holes in two-dimensional dilatonic gravity. Our results agree with the prior literature whenever a direct comparison is possible and provide the analysis of a much more diverse class of black hole models than previously considered.
Kettner Joanne
Kunstatter Gabor
Medved A. J. M.
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