Decaying into the thermal medium in the early universe

被引：0
作者：
Yokoyama, J [1 ]
机构：
[1] Univ Tokyo, RESCEU, Tokyo 1130033, Japan
来源：
PARTICLES, STRINGS, AND COSMOLOGY | 2005年 / 805卷
关键词：
cosmology; early universe; nonequilibrium processes; scalar fields;
D O I：
暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We calculate the dissipation rate of a coherent scalar field oscillation in a thermal environment such as in the late reheating stage after inflation using nonequilibrium quantum field theory. It is shown that the dissipation rate is nonvanishing even when the decay products have a larger thermal mass than the oscillating scalar field, and its cosmological implications are discussed.
引用
收藏
页码：82 / 86
页数：5
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