Initial condition for new inflation in supergravity

被引：5
|
作者：
Asaka, T [1 ]
Kawasaki, M
Yamaguchi, M
机构：
[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
[2] Univ Tokyo, Res Ctr Early Universe, Tokyo 1130033, Japan
来源：
PHYSICAL REVIEW D | 2000年 / 61卷 / 02期
关键词：
D O I：
10.1103/PhysRevD.61.027303
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the initial value problem of new inflation models in the scheme of supergravity. We find that an inflaton generally acquires a mass of the order of the Hubble parameter via gravitationally suppressed interactions with particles in the thermal bath of the universe. This additional mass term stabilizes dynamically the inflaton at the local maximum of the potential, which offers the initial condition of new inflation.
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页数：3
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