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SPACING OF THE ENTROPY SPECTRUM FOR KS BLACK HOLE IN HOŘAVA–LIFSHITZ GRAVITY

M. R. SETARE

Department of Campus of Bijar, University of Kurdistan, Bijar, Iran

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and

D. MOMENI

Department of Physics, Faculty of Basic Sciences, Tarbiat Moa'llem University, Tehran, Iran

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https://doi.org/10.1142/S0217732311034700Cited by:30

Abstract

In this paper we present the spectrum of entropy/area for Kehagias–Sfetsos (KS) black hole in Hořava–Lifshitz (HL) gravity via quasinormal modes (QNM) approach. We show that in the massive case, the mass parameter μ disappears in the entropy spectrum and the quasinormal modes are modified by a term proportional to the mass square term. Our calculations show that the charge-like parameter appears in the surface gravity and our calculations can be applied to any spherically symmetric spacetime which has only one physically acceptable horizon. Our main difference between our calculations and what was done in Ref. 1 is that we explicitly calculated the portion of charge and mass on the surface gravity and consequently in the QNM expression. Since the imaginary part of the QNM is related to the adiabatic invariance of the system and also to the entropy, surprisingly the mass parameter does not appear in the entropy spectrum. Our conclusion supported by some acclaims about the scalar field parameters (charges) cannot change the fundamental parameters in the four-dimensional black holes.

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Vol. 26, No. 02

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Received 9 May 2010

Revised 3 June 2010

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SPACING OF THE ENTROPY SPECTRUM FOR KS BLACK HOLE IN HOŘAVA–LIFSHITZ GRAVITY

Abstract

References

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