Measuring the duration of inflation with the curvaton

Torrado, Jesús, Byrnes, Christian T, Hardwick, Robert J, Vennin, Vincent and Wands, David (2018) Measuring the duration of inflation with the curvaton. Physical Review D, 98. 063525-1. ISSN 2470-0010

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Simple models of single-field inflation in the very early universe can generate the observed amplitude and scale dependence of the primordial density perturbation, but models with multiple fields can provide an equally good fit to current data. We show how future observations will be able to distinguish between currently favoured models. If a curvaton field generates the primordial perturbations after inflation, we show how the total duration of inflation can be measured.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Astronomy Centre
Subjects: Q Science > QB Astronomy
Depositing User: Richard Chambers
Date Deposited: 08 Oct 2018 10:28
Last Modified: 19 Nov 2020 11:40

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