Cosmological dissipative structure

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Abstract

The concept of black hole entropy is generalized to cosmological event horizons. An analogue of the Bekenstein-Hawking generalized second law of thermodynamics is suggested. This law is illustrated by considering entropy changes in various black hole de Sitter spacetimes, and also with the help of a viscous-driven de Sitter universe model, which provides a cosmological version of a far-fromequilibrium dissipative structure. The law apparently fails for some recontractinguniverse models. This indicates that a contribution to the gravitational entropy has been omitted. A possible remedy involving algorithmic complexity theory is suggested. I propose the use of a cosmic "entropy censorship" hypothesis as a filter for acceptable field theories.

Original languageEnglish (US)
Pages (from-to)1051-1066
Number of pages16
JournalInternational Journal of Theoretical Physics
Volume28
Issue number9
DOIs
StatePublished - Sep 1 1989
Externally publishedYes

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ASJC Scopus subject areas

  • Mathematics(all)
  • Physics and Astronomy (miscellaneous)

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