Area spectrum of near-extremal SdS black holes via the new interpretation of quasinormal modes

Abstract

Motivated by the recent work about a new physical interpretation of quasinormal modes by Maggiore, we investigate the quantization of near-extremal Schwarzschild-de Sitter black holes in the four dimensional spacetime. Following Kunstatter's method, we derive the area and entropy spectrum of near-extremal Schwarzschild-de Sitter black holes which differs from Setare's result. Furthermore, we find that the derived a universal area spectrum is $2\pi n$ which is equally spaced.

8 pages,no figures

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• Quasi normal modes and the area spectrum of a near extremal de Sitter black hole with conformally coupled scalar field
• Scalar Clouds and Quasinormal Modes