Vacuum stress tensor in an Einstein universe: Finite-temperature effects

Details Vacuum stress tensor in an Einstein universe: Finite-temperature effects Vacuum stress tensor in an Einstein universe: Finite-temperature effects

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977phrvd..15.1484d&link_type=abstract

Physical Review D (Particles and Fields), Volume 15, Issue 6, 15 March 1977, pp.1484-1493

Mathematics

Logic

57

Scientific paper

The vacuum average of the stress-energy tensor for a massive scalar field in an Einstein universe is calculated. The renormalization adopted depends on the special circumstance that the WKB approximation is exact on the three-dimensional sphere. The finite results are purely nonperturbative and a renormalization of only the cosmological constant is called for. The finite-temperature corrections have also been considered with the aid of a theory of relativistic time-temperature Green's functions in static space-times. It is shown explicitly that the massless scalar gas is an ideal one satisfying P V=E3.

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