2015年9月
Constrained inflaton due to a complex scalar
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
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- ,
- 巻
- 号
- 9
- 記述言語
- 英語
- 掲載種別
- 機関テクニカルレポート,技術報告書,プレプリント等
- DOI
- 10.1088/1475-7516/2015/09/039
- 出版者・発行元
- IOP PUBLISHING LTD
We reexamine inflation due to a constrained inflaton in the model of a complex scalar. Inflaton evolves along a spiral-like valley of special scalar potential in the scalar field space just like single field inflation. Sub-Planckian inflaton can induce sufficient e-foldings because of a long slow-roll path. In a special limit, the scalar spectral index and the tensor-to-scalar ratio has equivalent expressions to the inflation with monomial potential phi(n). The favorable values for them could be obtained by varying parameters in the potential. This model could be embedded in a certain radiative neutrino mass model
- リンク情報
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- DOI
- https://doi.org/10.1088/1475-7516/2015/09/039
- arXiv
- http://arxiv.org/abs/arXiv:1505.05955
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000365690000039&DestApp=WOS_CPL
- URL
- http://arxiv.org/abs/1505.05955v3
- ID情報
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- DOI : 10.1088/1475-7516/2015/09/039
- ISSN : 1475-7516
- arXiv ID : arXiv:1505.05955
- Web of Science ID : WOS:000365690000039