Hillclimbing inflation in metric and Palatini formulations

Ryusuke Jinno, Kunio Kaneta, Kin ya Oda, Seong Chan Park

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

A new setup of cosmic inflation with a periodic inflaton potential and conformal factor is discussed in the metric and Palatini formulations of gravity. As a concrete example, we focus on a natural-inflation-like inflaton potential, and show that the inflationary predictions fall into the allowed region of cosmic microwave background observations in both formulations.

Original languageEnglish (US)
Pages (from-to)396-402
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume791
DOIs
StatePublished - Apr 10 2019

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