Large Squeezing Behavior of Cosmological Entropy Generation

Details Large Squeezing Behavior of Cosmological Entropy Generation Large Squeezing Behavior of Cosmological Entropy Generation

1994-03-11

arxiv.org/abs/gr-qc/9403024v1

Class.Quant.Grav.11:2317-2330,1994

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages (LaTeX)

Scientific paper

10.1088/0264-9381/11/9/013

We consider the generation of entropy when particle pairs are created at a cosmological level. Making a reduction via the particle number basis, we compute the classical limit for the entropy generation due to the evolution of the matter field fluctuations (squeeze transformation), obtaining that it is linear in the squeeze parameter for a general class of initial states. We also discuss the dependence of the generated entropy on the coarse graining criteria.

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