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

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

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phrvd..32.2528m&link_type=abstract

Physical Review D (Particles and Fields), Volume 32, Issue 10, 15 November 1985, pp.2528-2538

Physics

6

Origin And Formation Of The Universe, Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity

Scientific paper

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.

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