Constraining Warm Inflation with the Cosmic Microwave Background

Details Constraining Warm Inflation with the Cosmic Microwave Background Constraining Warm Inflation with the Cosmic Microwave Background

2004-02-12

arxiv.org/abs/astro-ph/0402299v1

Phys.Lett. B589 (2004) 1-6

Astronomy and Astrophysics

Astrophysics

6 pages, 2 figures, RevTeX 4

Scientific paper

10.1016/j.physletb.2004.03.044

We discuss the spectrum of scalar density perturbations from warm inflation when the friction coefficient $\Gamma$ in the inflaton equation is dependent on the inflaton field. The spectral index of scalar fluctuations depends on a new slow-roll parameter constructed from $\Gamma$. A numerical integration of the perturbation equations is performed for a model of warm inflation and gives a good fit to the WMAP data for reasonable values of the model's parameters.

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