Warm Inflation with a General Form of the Dissipative Coefficient

Details Warm Inflation with a General Form of the Dissipative Coefficient Warm Inflation with a General Form of the Dissipative Coefficient

2009-03-04

arxiv.org/abs/0903.0685v1

JCAP 0903:023,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, no figures, to be published on JCAP

Scientific paper

10.1088/1475-7516/2009/03/023

We propose and investigate a general form of the dissipative coefficient $\Gamma=C_{\phi}T^{m}/\phi^{m-1}$ in warm inflation. We focus on discussing the strong dissipative processes $r=\Gamma/3H\gg1$ in the thermal state of approximate equilibrium. To this toy model, we give the slow-roll conditions, the amplitude and the index of the power spectrum under the general form of dissipative coefficient. Furthermore, the monomial potential and the hybrid-like potential are analyzed specifically. We conclude that the $m=0,3$ cases are worthy further investigation especially.

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