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Creating perturbations from a decaying field during inflation

Research output: Contribution to journalJournal article

Published

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Journal publication date1/04/2013
JournalPhysical Review D
Journal number8
Volume87
Number of pages4
Original languageEnglish

Abstract

Typically the fluctuations generated from a decaying field during inflation do not contribute to the large scale structures. In this paper we provide an example where it is possible for a field which slowly rolls and then decays during inflation to create all the matter perturbations with a slightly red-tilted spectral index, with no isocurvature perturbations, and with a possibility of a departure from Gaussian fluctuations.

Bibliographic note

© 2013 American Physical Society 4 pages, 2 figures, revision accepted by PRD