Curvature perturbations from broken symmetries

被引：58

作者：

Kolb, EW

Riotto, A

Vallinotto, A

机构：

[1] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA

[2] Univ Chicago, Enrico Fermi Inst, Dept Astron & Astrophys, Chicago, IL 60637 USA

[3] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[4] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

来源：

PHYSICAL REVIEW D | 2005年 / 71卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.71.043513

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a new general mechanism to generate curvature perturbations after the end of the slow-roll phase of inflation. Our model is based on the simple assumption that the potential driving inflation is characterized by an underlying global symmetry which is slightly broken.

引用

页码：043513 / 1

页数：10

共 25 条

[1]

[Anonymous], HEPPH0210162

[2] SPONTANEOUS CREATION OF ALMOST SCALE-FREE DENSITY PERTURBATIONS IN AN INFLATIONARY UNIVERSE [J].