Quantum effect on Kaluza-Klein cosmologies: High-temperature case

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Abstract

The time evolution of a higher-dimensional universe with a topology of R×Sd×SD is discussed by using the effective action in a high-temperature limit. The universe, which starts at high temperature, always comes out of thermal equilibrium. Consequently, nonthermal quantum effects such as particle production become very important. The conversion from gravitational entropy to matter entropy through particle production might give the present large entropy.

Original languageEnglish
Pages (from-to)2528-2538
Number of pages11
JournalPhysical Review D
Volume32
Issue number10
DOIs
Publication statusPublished - 1985 Jan 1

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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