The Power Spectrum for a Multi-Component Inflaton to Second-Order Corrections in the Slow-Roll Expansion

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dc.creatorGong, Jin-Ook
dc.creatorStewart, Ewan D.
dc.date2002-02-05
dc.date.accessioned2026-07-07T11:08:04Z
dc.date.available2026-07-07T11:08:04Z
dc.descriptionWe derive the power spectrum $\mathcal P(k)$ 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 ${dn}/{d\ln k}$ to leading order.
dc.description11 pages, no figure. KAIST-TH 2002/01
dc.identifierhttps://arxiv.org/abs/astro-ph/0202098
dc.identifierhttp://arxiv.org/abs/astro-ph/0202098
dc.identifierPhys.Lett.B538:213-222,2002
dc.identifierdoi:10.1016/S0370-2693(02)02004-X
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190012
dc.subjectAstrophysics
dc.titleThe Power Spectrum for a Multi-Component Inflaton to Second-Order Corrections in the Slow-Roll Expansion
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