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arXiv · 0810.2039

Particle production and reheating in the inflationary universe

Chris M Graham·Ian G Moss
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Abstract

Thermal field theory is applied to particle production rates in inflationary models, leading to new results for catalysed, or two-stage decay, where massive fields act as decay channels for the production of light fields. A numerical investigation of the Bolztmann equation in an expanding universe shows that the particle distributions produced during small amplitude inflaton oscillations or alongside slowly moving inflaton fields can thermalise.

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Chris M Graham, Ian G Moss. 2008-10-15. Particle production and reheating in the inflationary universe. https://doi.org/10.1103/physrevd.78.123526

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