Gravitational wave production from preheating: parameter dependence

  title={Gravitational wave production from preheating: parameter dependence},
  author={D. Figueroa and F. Torrent{\'i}},
  journal={Journal of Cosmology and Astroparticle Physics},
Parametric resonance is among the most efficient phenomena generating gravitational waves (GWs) in the early Universe. The dynamics of parametric resonance, and hence of the GWs, depend exclusively on the resonance parameter q. The latter is determined by the properties of each scenario: the initial amplitude and potential curvature of the oscillating field, and its coupling to other species. Previous works have only studied the GW production for fixed value(s) of q. We present an analytical… Expand
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