Gravitational Waves from Oscillons with Cuspy Potentials
Cosmology and Nongalactic Astrophysics
2018-01-23 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
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.
Keywords
Cite
@article{arxiv.1707.09841,
title = {Gravitational Waves from Oscillons with Cuspy Potentials},
author = {Jing Liu and Zong-Kuan Guo and Rong-Gen Cai and Gary Shiu},
journal= {arXiv preprint arXiv:1707.09841},
year = {2018}
}
Comments
5 pages,4 figures Accepted for publication in Phys. Rev. Lett