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Preheating in Quintessential Inflation

A. H. Campos·H. C. Reis·R. Rosenfeld
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Abstract

We perform a numerical study of the preheating mechanism of particle production in models of quintessential inflation and compare it with the usual gravitational production mechanism. We find that even for a very small coupling between the inflaton field and a massless scalar field, g > 10^{-9}, preheating dominates over gravitational particle production. Reheating temperatures in the range 10^{-2} GeV < T_{rh} < 10^{15} GeV can be easily obtained.

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A. H. Campos, H. C. Reis, R. Rosenfeld. 2002-10-09. Preheating in Quintessential Inflation. https://doi.org/10.1016/j.physletb.2003.09.064

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