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Reheating as a surface effect

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Article number091301
<mark>Journal publication date</mark>7/08/2002
<mark>Journal</mark>Physical Review Letters
Issue number9
Number of pages4
<mark>Original language</mark>English


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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© 2002 The American Physical Society 4 pages