On the dynamics of cosmological particle production

Details On the dynamics of cosmological particle production On the dynamics of cosmological particle production

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gregr..21..881b&link_type=abstract

General Relativity and Gravitation, Volume 21, Issue 9, pp.881-898

Computer Science

1

Scientific paper

The time evolution of the particle number density and spectrum of massive scalar particles, coupled conformally to a classical Friedman-Robertson-Walker gravitational field is followed numerically. Not only for a pure radiation cosmos, but also for one with an inflationary interlude, the density of particles produced remains constant in time. This results in a constant equivalent “temperature” scale up to the Compton time of the massive particles, and opens the possibility that during a sufficiently long inflation the energy density of the particles produced can exceed that of the radiation background.

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