Primordial density perturbation in the curvaton scenario

D. Lyth, Carlo Ungarelli, David Wands

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Abstract

We analyze the primordial density perturbation when it is generated by a “curvaton” field different from the inflaton. In some cases this perturbation may have large isocurvature components, fully correlated or anticorrelated with the adiabatic component. It may also have a significant non-Gaussian component. All of these effects are calculated in a form which will enable direct comparison with current and forthcoming observational data
Original languageEnglish
Pages (from-to)023503
Number of pages1
JournalPhysical Review D
Volume67
Issue number2
DOIs
Publication statusPublished - 2003

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