Mixed inflaton and curvaton perturbations

被引：109

作者：

Langlois, D ^{[1
]}

Vernizzi, F ^{[1
]}

机构：

[1] Inst Astrophys, GReCo, CNRS, FRE 2435, F-75014 Paris, France

来源：

PHYSICAL REVIEW D | 2004年 / 70卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.70.063522

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A recent variant of the inflationary paradigm is that the primordial curvature perturbations come from quantum fluctuations of a scalar field, subdominant and effectively massless during inflation, called the "curvaton," instead of the fluctuations of the inflaton field. We consider the situation where the primordial curvature perturbations generated by the quantum fluctuations of an inflaton and of a curvaton field are of the same order of magnitude. We compute the total curvature perturbation and its spectrum in this case and we discuss the observational consequences.

引用

页数：11

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