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Lookup NU author(s): Lisa Hall,
Professor Ian Moss
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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. © 2004 Published by Elsevier B.V.
Author(s): Hall LMH, Moss IG, Berera A
Publication type: Article
Publication status: Published
Journal: Physics Letters B
ISSN (print): 0370-2693
ISSN (electronic): 1873-2445
Publisher: Elsevier BV
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