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The spectrum of rotating black holes and its implications for Hawking radiation

Saurya Das1, Himan Mukhopadhyay2,3 and P Ramadevi2

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The reduced phase space formalism for quantizing black holes has recently been extended to find the area and angular momentum spectra of four-dimensional Kerr black holes. We extend this further to rotating black holes in all spacetime dimensions and show that although as in four dimensions the spectrum is discrete, it is not equispaced in general. As a result, Hawking radiation spectra from these black holes are continuous, as opposed to the discrete spectrum predicted for four-dimensional black holes.


PACS

04.70.Dy Quantum aspects of black holes, evaporation, thermodynamics

04.60.Ds Canonical quantization

MSC

83C57 Black holes

81S30 Phase space methods including Wigner distributions, etc.

Subjects

Gravitation and cosmology

Dates

Issue 2 (21 January 2005)

Received 3 October 2004, in final form 3 December 2004

Published 3 January 2005



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