3 years ago

Gravitational Waves from Oscillons with Cuspy Potentials.

Zong-Kuan Guo, Jing Liu, Rong-Gen Cai, Gary Shiu

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.

Publisher URL: http://arxiv.org/abs/1707.09841

DOI: arXiv:1707.09841v2

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