Cosmological horizons and the generalised second law of thermodynamics

Research output: Contribution to journalArticle

105 Scopus citations

Abstract

The author investigates the change in event-horizon area in cosmological models that depart slightly from de Sitter space. If the gravitational source is a perfect inviscid fluid satisfying the dominant energy condition, the area is proved to be non-decreasing. If the fluid is viscous, the area can decrease, but the attendant generation of entropy ensures that the generalised second law of thermodynamics remains unviolated.

Original languageEnglish (US)
Article number006
Pages (from-to)L225-L228
JournalClassical and Quantum Gravity
Volume4
Issue number6
DOIs
StatePublished - Dec 1 1987
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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