Parametric resonance with multi-frequencies in preheating

Details Parametric resonance with multi-frequencies in preheating Parametric resonance with multi-frequencies in preheating

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1122..348m&link_type=abstract

PHYSICS AND MATHEMATICS OF GRAVITATION: Proceedings of the Spanish Relativity Meeting 2008. AIP Conference Proceedings, Volume

Physics

Cosmology, Numerical Approximation And Analysis, Physics Of Black Holes

Scientific paper

We present here an extended abstract of the results derived in [1], We study the decay of the inflaton field to another scalar field χ in the parametric resonance preheating mechanism. We consider the presence of several simultaneous couplings between the fields. We show that the contribution for the χ field energy density of the higher harmonic is a small fraction of that of the fundamental frequency, and so the presence of a finite number of higher harmonics has limited cosmological implications

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