Schwarzschild black hole and the generalized second law in phantom-dominated universe

Details Schwarzschild black hole and the generalized second law in phantom-dominated universe Schwarzschild black hole and the generalized second law in phantom-dominated universe

2006-11-22

arxiv.org/abs/gr-qc/0611114v3

Phys.Lett.B645:108-112,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, references added, typos corrected, accepted for publication in Physics Letters B

Scientific paper

10.1016/j.physletb.2006.12.029

We study the conditions required for validity of the generalized second law in phantom dominated universe in the presence of Schwarzschild black hole. Our study is independent of the origin of the phantom like behavior of the considered universe. We also discuss the generalized second law in the neighborhood of transition (from quintessence to phantom regime) time. We show that even for a constant equation of state parameter the generalized second law may be satisfied provided the temperature is not taken as de Sitter temperature. It is shown that in models with (only) a transition from quintessence to phantom regime the generalized second law does not hold in the transition epoch.

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