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arXiv · 1707.09841

Gravitational Waves from Oscillons with Cuspy Potentials

Jing Liu·Zong-Kuan Guo·Rong-Gen Cai·Gary Shiu
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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.

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Jing Liu, Zong-Kuan Guo, Rong-Gen Cai, Gary Shiu. 2017-07-31. Gravitational Waves from Oscillons with Cuspy Potentials. https://doi.org/10.1103/physrevlett.120.031301

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