Hill-climbing inflation

Ryusuke Jinno; Kunio Kaneta

doi:10.1103/PhysRevD.96.043518

Hill-climbing inflation

Ryusuke Jinno
, Kunio Kaneta

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

We propose a new class of inflationary models in which inflation takes place while the inflaton is climbing up a potential hill due to a coupling to gravity. We study their attractor behavior, and investigate its relation with known attractors. We also discuss a possible realization of this type of models with natural inflation, and show that the inflationary predictions come well within the region consistent with the observation of the cosmic microwave background.

Original language	English (US)
Article number	044041
Journal	Physical Review D
Volume	96
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevD.96.043518
State	Published - Aug 15 2017

Bibliographical note

Funding Information:
This work was supported by Institute for Basic Science (Project code IBS-R018-D1). The authors are grateful to T. Terada for helpful comments.

Publisher Copyright:
© 2017 American Physical Society.

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10.1103/PhysRevD.96.043518

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abstract = "We propose a new class of inflationary models in which inflation takes place while the inflaton is climbing up a potential hill due to a coupling to gravity. We study their attractor behavior, and investigate its relation with known attractors. We also discuss a possible realization of this type of models with natural inflation, and show that the inflationary predictions come well within the region consistent with the observation of the cosmic microwave background.",

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Hill-climbing inflation

Abstract

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