Parametric resonance with multi-frequencies in preheating

被引：0
|
作者：
Mimoso, Jose P. [1 ]
Charters, Tiago [2 ,3 ]
Nunes, Ana [1 ]
机构：
[1] Univ Lisbon, Dept Fis, Fac Ciencias, Av Gama Pinto 2, P-1649003 Lisbon, Portugal
[2] Inst Engn Lisboa, Dept Engn Mecd Area Cientifica Matemat, P-1949014 Lisbon, Portugal
[3] Univ Lisbon, Ctr Fis Teor & Computac, P-1649003 Lisbon, Portugal
来源：
PHYSICS AND MATHEMATICS OF GRAVITATION | 2009年 / 1122卷
关键词：
Cosmology; Inflation; Scalar fields; Thermal history;
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 present here an extended abstract of the results derived in [1]. We study the decay of the inflaton field to another scalar field X in the parametric resonance preheating mechanism. We consider the presence of several simultaneous couplings between the fields. We show that the contribution for the X field energy density of the higher harmonic is a small fraction of that of the fundamental frequency, and so the presence of a finite number of higher harmonics has limited cosmological implications
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页码：348 / +
页数：2
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