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

引用

页码：348 / +

页数：2

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