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Non-Gaussianity in fluctuations from warm inflation

Lookup NU author(s): Professor Ian MossORCiD, Chun Xiong

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Abstract

The scalar mode density perturbations in the warm inflationary scenario are analysed with a view to predicting the amount of non-Gaussianity produced by this scenario. The analysis assumes that the inflaton evolution is strongly damped by the radiation, with damping terms that are temperature independent. Entropy fluctuations during warm inflation play a crucial role in generating non-Gaussianity and result in a distinctive signal which should be observable by the Planck satellite. © 2007 IOP Publishing Ltd and SISSA.

Publication metadata

Author(s): Moss IG, Xiong C

Publication type: Article

Publication status: Published

Journal: Journal of Cosmology and Astroparticle Physics

Year: 2007

Volume: 2007

Issue: 4

Pages: -

ISSN (print): 1475-7516

ISSN (electronic):

Publisher: Institute of Physics Publishing Ltd.

URL: http://dx.doi.org/10.1088/1475-7516/2007/04/007

DOI: 10.1088/1475-7516/2007/04/007

Notes: e-print no. - astro-ph/0701302

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