The Generalized Second Law of Thermodynamics in Cosmology

Details The Generalized Second Law of Thermodynamics in Cosmology The Generalized Second Law of Thermodynamics in Cosmology

1999-04-26

arxiv.org/abs/gr-qc/9904061v2

Phys.Rev.Lett. 84 (2000) 2072

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, no figures

Scientific paper

10.1103/PhysRevLett.84.2072

A classical and quantum mechanical generalized second law of thermodynamics in cosmology implies constraints on the effective equation of state of the universe in the form of energy conditions, obeyed by many known cosmological solutions, and is compatible with entropy bounds which forbid certain cosmological singularities. In string cosmology the second law provides new information about the existence of non-singular solutions, and the nature of the graceful exit transition from dilaton-driven inflation.

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