Gravitational Waves from Oscillons with Cuspy Potentials

被引：77

作者：

Liu, Jing ^{[1
,2
]}

Guo, Zong-Kuan ^{[1
,2
]}

Cai, Rong-Gen ^{[1
,2
]}

Shiu, Gary ^{[3
,4
]}

机构：

[1] Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China

[3] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA

[4] Univ Chinese Acad Sci, Int Coll, Beijing 100049, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 120卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Gravitational effects;

D O I：

10.1103/PhysRevLett.120.031301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the production of gravitational waves during oscillations of the inflaton around the minimum of a cuspy potential after inflation. We find that a cusp in the potential can trigger copious oscillon formation, which sources a characteristic energy spectrum of gravitational waves with double peaks. The discovery of such a double-peak spectrum could test the underlying inflationary physics.

引用

页数：5

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