Scattering amplitudes and thermal temperatures of the Schwarzschild-de Sitter black holes

Details Scattering amplitudes and thermal temperatures of the Schwarzschild-de Sitter black holes Scattering amplitudes and thermal temperatures of the Schwarzschild-de Sitter black holes

2002-01-16

arxiv.org/abs/hep-th/0201117v2

Phys.Rev. D66 (2002) 044017

Physics

High Energy Physics

High Energy Physics - Theory

15pages, 1figure, Some discussions are added, To Appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.66.044017

We study thermodynamic evaporation of Schwarzschild-de Sitter black holes in terms of a low energy perturbation theory. A small black hole which is far from the cosmological horizon and observers at the spacelike hypersurface where black hole attraction and expansion of cosmological horizon balance exactly are considered. In the low energy perturbation, scalar field equations are solved in both regions of the hypersurface and scattering amplitudes are derived. And then the desired thermal temperatures from the two horizons are obtained as a ``minimal'' value of the statistical thermal temperature, and the fine-tuning between amplitudes gives a relation of the two temperatures.

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