Gravity Waves from Tachyonic Preheating after Hybrid Inflation

Details Gravity Waves from Tachyonic Preheating after Hybrid Inflation Gravity Waves from Tachyonic Preheating after Hybrid Inflation

2008-12-15

arxiv.org/abs/0812.2917v1

JCAP 0903:001,2009

Astronomy and Astrophysics

Astrophysics

20 pages, 14 figures

Scientific paper

10.1088/1475-7516/2009/03/001

We study the stochastic background of gravitational waves produced from preheating in hybrid inflation models. We investigate different dynamical regimes of preheating in these models and we compute the resulting gravity wave spectra using analytical estimates and numerical simulations. We discuss the dependence of the gravity wave frequencies and amplitudes on the various potential parameters. We find that large regions of the parameter space leads to gravity waves that may be observable in upcoming interferometric experiments, including Advanced LIGO, but this generally requires very small coupling constants.

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