Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1993-07-20
Class.Quant.Grav.10:L133-L136,1993
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
7 pages, plain TEX, to appear in Class.Quantum Grav., CERN-TH.6954/93
Scientific paper
10.1088/0264-9381/10/9/004
The entropy growth in a cosmological process of pair production is completely determined by the associated squeezing parameter, and is insensitive to the number of particles in the initial state. The total produced entropy may represent a significant fraction of the entropy stored today in the cosmic black-body radiation, provided pair production originates from a change in the background metric at a curvature scale of the Planck order.
Gasperini Maurizio
Giovannini Marcella
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