The power spectrum for a multi-component inflaton to second-order corrections in the slow-roll expansion

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We derive the power spectrum P(k) of the density perturbations produced during inflation up to second-order corrections in the standard slow-roll approximation for an inflaton with more than one degree of freedom. We also present the spectral index n up to first-order corrections including previously missing terms, and the running dn/d Ink to leading order. (C) 2002 Published by Elsevier Science B.V.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2002-07
Language
English
Article Type
Article
Keywords

BACKGROUND ANISOTROPY DATA; INFLATIONARY UNIVERSE; COSMOLOGICAL PERTURBATIONS; GENERATION; MAXIMA-1

Citation

PHYSICS LETTERS B, v.538, no.3-4, pp.213 - 222

ISSN
0370-2693
URI
http://hdl.handle.net/10203/78885
Appears in Collection
PH-Journal Papers(저널논문)
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