Reheating as a surface effect

Details Reheating as a surface effect Reheating as a surface effect

2002-04-23

arxiv.org/abs/hep-ph/0204270v1

Phys.Rev.Lett. 89 (2002) 091301

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages

Scientific paper

10.1103/PhysRevLett.89.091301

We describe a new mechanism for reheating the Universe through evaporation of a surface charge of a fragmented inflaton condensate. We show that for a range of Yukawa coupling of the inflaton to the matter sector evaporation gives rise to a much smaller reheat temperature compared to the standard perturbative decay. As a consequence, reheating through a surface effect could solve the gravitino and moduli over production problem in inflationary models without fine tuning the Yukawa sector.

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