Temperature at the first stage of reheating in inflationary cosmology without slow rolling.

Details Temperature at the first stage of reheating in inflationary cosmology without slow rolling. Temperature at the first stage of reheating in inflationary cosmology without slow rolling.

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ncimb.111..623c&link_type=abstract

Nuovo Cimento B, Vol. 111B, No. 5, p. 623 - 630

Mathematics

Logic

8

Cosmology: Inflationary Universe

Scientific paper

The authors consider statistical properties of massive non-relativistic bosons arising at the first stage of reheating as a result of quantum decay of a classical inflaton field. They use the cosmological model describing the dynamics of a transition from the inflationary stage to a quasi-dust stage without imposing the slow-rolling hypothesis. In this framework, one applies statistics and find that the process of emerging of massive non-relativistic bosons at the first stage of reheating looks like evaporation of a Bose condensate. They are described by the equation of state for an ideal quantum degenerate Bose gas which has the Gibbons-Hawking temperature related to the de Sitter event horizon.

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