Hillclimbing inflation in metric and Palatini formulations

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

Research output: Contribution to journalArticle

8 Citations (Scopus)


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
Pages (from-to)396-402
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 2019 Apr 10

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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