Polyinstanton axion inflation

Kobayashi, Tatsuo; Uemura, Shohei; Yamamoto, Junji

Physical review D, 2017, 96(2), 026007

Permalink : https://hdl.handle.net/2115/67108

このアイテムのアクセス数:837件（2026-10-09 20:31 集計）

ファイル	フォーマット	サイズ	閲覧回数	説明
PhysRevD96 026007	pdf	365 KB	593

アクセス権	open access
URI	https://hdl.handle.net/2115/67108
タイトル	Polyinstanton axion inflation
著者	Kobayashi, Tatsuo ; Uemura, Shohei ; Yamamoto, Junji
e-Rad_Researcher 60322153 著者名 Kobayashi, Tatsuo
著者名 Uemura, Shohei
著者名 Yamamoto, Junji
言語	英語
発行日	2017-07-15
出版者	American Physical Society (APS)
収録物名	Physical review D
巻(号)	96(2)
ページ	026007
抄録	We investigate the axion inflation model derived by polyinstanton effects in type II superstring theories. Polyinstanton effects are instanton effects corrected by another instanton and they can generate the modulus-axion potential with the double exponential function. Although the axion has a period of small value, this potential can have a flat region because its derivatives are exponentially suppressed by nonperturbative effects. From the view point of the cosmic inflation, such a potential is interesting. In this paper, we numerically study the possibilities of realizing the cosmic inflation. We also study their spectral index and other cosmological observables, numerically.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	©2017 American Physical Society
PISSN	2470-0010
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevD.96.026007