Intrinsic measures of field entropy in cosmological particle creation

Details Intrinsic measures of field entropy in cosmological particle creation Intrinsic measures of field entropy in cosmological particle creation

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phlb..180..329h&link_type=abstract

Physics Letters B, Volume 180, Issue 4, p. 329-334.

Physics

51

Scientific paper

Using the properties of quantum parametric oscillators, two quantities are identified which increase monotonically in time in the process of parametric amplification. The use of these quantities as possible measures of entropy generation in vacuum cosmological particle creation is suggested. These quantities which are of complementary nature are both related to the number of particles spontaneously created.
Permanent address: Departamento de Termologia, Facultad de Ciencias, Universidad Autonoma de Barcelona, Ballaterra, Barcelona, Spain.

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