Modulated decay in the multi-component Universe

被引：7

作者：

Enomoto, Seishi ^{[1
]}

Kohri, Kazunori ^{[2
,3
]}

Matsuda, Tomohiro ^{[4
]}

机构：

[1] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

[2] KEK, IPNS, Ctr Theory, Cosmophys Grp, Tsukuba, Ibaraki 3050801, Japan

[3] Grad Univ Adv Study Sokendai, Tsukuba, Ibaraki 3050801, Japan

[4] Saitama Inst Technol, Phys Lab, Fukaya, Saitama 3690293, Japan

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2013年 / 08期

关键词：

cosmological perturbation theory; cosmological phase transitions; non-gaussianity; physics of the early universe;

D O I：

10.1088/1475-7516/2013/08/047

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The early Universe after inflation may have oscillations, kinations (nonoscillatory evolution of a field), topological defects, relativistic and non-relativistic particles at the same time. The Universe whose energy density is a sum of those components can be called the multi-component Universe. The components, which may have distinguishable density scalings, may decay modulated. In this paper we study generation of the curvature perturbations caused by the modulated decay in the multi-component Universe.

引用

页数：23

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