Quasi normal modes: a simple derivation of the level spacing of the frequencies

Padmanabhan, T. (2003) Quasi normal modes: a simple derivation of the level spacing of the frequencies Classical and Quantum Gravity, 21 (1). No pp. given. ISSN 0264-9381

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Official URL: http://iopscience.iop.org/0264-9381/21/1/L01

Related URL: http://dx.doi.org/10.1088/0264-9381/21/1/L01

Abstract

It is known that the imaginary parts of the frequencies of the quasi-normal modes of the Schwarzschild black hole are equally spaced, with the level spacing dependent only on the surface gravity. We generalize this result to a wider class of spacetimes and provide a simple derivation of the imaginary parts of the frequencies. The analysis shows that the result is closely linked to the thermal nature of horizons and arises from the exponential redshift of the wave modes close to the horizon.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
ID Code:73545
Deposited On:09 Dec 2011 05:26
Last Modified:09 Dec 2011 05:26

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