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Measuring the duration of inflation with the curvaton

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posted on 2023-06-09, 15:20 authored by Jesus Torrado Cacho, Christian ByrnesChristian Byrnes, Robert J Hardwick, Vincent Vennin, David Wands
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.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Physical Review D

ISSN

2470-0010

Publisher

American Physical Society

Volume

98

Page range

063525-1

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Astronomy Centre Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2018-10-08

First Open Access (FOA) Date

2018-10-08

First Compliant Deposit (FCD) Date

2018-10-03

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