Cosmological scalar-particle creation rate

Details Cosmological scalar-particle creation rate Cosmological scalar-particle creation rate

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981phrvd..24..290c&link_type=abstract

Physical Review D (Particles and Fields), Volume 24, Issue 2, 15 July 1981, pp.290-296

Physics

6

Scientific paper

We consider the scalar-particle creation rate and its energy distribution in a spatially flat expanding universe, using the quantum equivalence principle, to make the field decomposition into its positive- and negative-frequency parts over each Cauchy surface, up to the second order of an expansion in powers of the Hubble coefficient. The particle flux is evaluated in the hot big-bang model and compared with the experimental data.

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