Reheating as a surface effect

Kari Enqvist, Shinta Kasuya, Anupam Mazumdar

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38 Citations (Scopus)


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 overproduction problem in inflationary models without fine tuning the Yukawa sector.
Original languageEnglish
Article number091301
Number of pages4
JournalPhysical Review Letters
Issue number9
Publication statusPublished - Aug-2002
Externally publishedYes

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