Non-minimally assisted chaotic inflation

Sang Chul Hyun, Jinsu Kim, Seong Chan Park, Tomo Takahashi

Research output: Contribution to journalArticlepeer-review

Abstract

Conventional wisdom says that a chaotic inflation model with a power-law potential is ruled out by the recent Planck-BICEP/Keck results. We find, however, that the model can be assisted by a non-minimally coupled scalar field and still provides a successful inflation. Considering a power-law chaotic inflation model of the type V ∼φn with n = {2, 4/3, 1, 2/3, 1/3}, we show that n = 1/3 (n = {2/3, 1/3}) may be revived with the help of the quadratic (quartic) non-minimal coupling of the assistant field to gravity.

Original languageEnglish
Article number045
JournalJournal of Cosmology and Astroparticle Physics
Volume2022
Issue number5
DOIs
Publication statusPublished - 2022 May 1

Bibliographical note

Publisher Copyright:
© 2022 The Author(s).

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics

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