Phantom Accretion by Black Holes and the Generalized Second Law of Thermodynamics

Details Phantom Accretion by Black Holes and the Generalized Second Law of Thermodynamics Phantom Accretion by Black Holes and the Generalized Second Law of Thermodynamics

2008-08-06

arxiv.org/abs/0808.0860v1

Astroparticle Physics 33, 292 (2010)

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

10.1016/j.astropartphys.2010.02.

The accretion of a phantom fluid with non-zero chemical potential by black holes is discussed with basis on the Generalized Second Law of thermodynamics. For phantom fluids with positive temperature and negative chemical potential we demonstrate that the accretion process is possible, and that the condition guaranteeing the positiveness of the phantom fluid entropy coincides with the one required by Generalized Second Law. In particular, this result provides a complementary confirmation that cosmological phantom fluids do not need to have negative temperatures.

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