Reheating as a surface effect

被引：39

作者：

Enqvist, K

Kasuya, S

Mazumdar, A

机构：

[1] Univ Helsinki, Dept Phys Sci, FIN-00014 Helsinki, Finland

[2] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[3] Abdus Salam Int Ctr Theoret Phys, I-34100 Trieste, Italy

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.89.091301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

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页数：4

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