Reheating of the Universe and evolution of the inflaton

Details Reheating of the Universe and evolution of the inflaton Reheating of the Universe and evolution of the inflaton

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..40..955m&link_type=abstract

Physical Review D (Particles and Fields), Volume 40, Issue 4, 15 August 1989, pp.955-966

Physics

10

Scientific paper

The problem of the reheating of the Universe after inflation is considered. Our approach is based on the use, as ``first principles,'' of the renormalized version of (a) the evolution equation for the mean value of an interacting scalar field and (b) the semiclassical Einstein equations. We compute (for two different toy models) the characteristic time for the damping of the mean-value oscillations. We show that when the oscillations are damped the Universe becomes radiation dominated and inflation ends. The techniques used in this paper are those of quantum field theory in curved spacetime and can be generalized to more realistic models.

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