The universal area spectrum in single-horizon black holes

Details The universal area spectrum in single-horizon black holes The universal area spectrum in single-horizon black holes

2004-05-22

arxiv.org/abs/hep-th/0405191v3

Phys.Rev. D70 (2004) 044041

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, 1 figure, references and comments added

Scientific paper

10.1103/PhysRevD.70.044041

We investigate highly damped quasinormal mode of single-horizon black holes motivated by its relation to the loop quantum gravity. Using the WKB approximation, we show that the real part of the frequency approaches the value $T_{\rm H}\ln 3$ for dilatonic black hole as conjectured by Medved et al. and Padmanabhan. It is surprising since the area specrtum of the black hole determined by the Bohr's correspondence principle completely agrees with that of Schwarzschild black hole for any values of the electromagnetic charge or the dilaton coupling. We discuss its generality for single-horizon black holes and the meaning in the loop quantum gravity.

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