Abstract
We discuss the spectrum of scalar density perturbations from warm inflation when the friction coefficient Γ 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 Γ. 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.
Original language | English |
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Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | Physics Letters B |
Volume | 589 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 3 Jun 2004 |
Keywords / Materials (for Non-textual outputs)
- 98.80.-k
- 98.80.Cq
- 98.80.Es