Cosmic microwave background and parametric resonance in reheating

Details Cosmic microwave background and parametric resonance in reheating Cosmic microwave background and parametric resonance in reheating

2001-09-24

arxiv.org/abs/hep-ph/0109218v2

Phys.Rev. D65 (2002) 103524

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 6 figures.Corrects misprinted formula and 2 numbers

Scientific paper

10.1103/PhysRevD.65.103524

The variation of the perturbative 3-curvature parameter, \zeta, is investigated in the period of reheating after inflation. The two-field model used has the inflaton, with an extra scalar field coupled to it, and non-linear effects of both fields are included as well as a slow decay mechanism into the hydrodynamic fluid of the radiation era. Changes in \zeta occur and persist into the succeeding cosmic eras to influence the generation of the cosmic microwave background fluctuations.

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