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j.physletb.2015.06.023.pdf | 227.02 kB | Adobe PDF | 見る/開く |
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DCフィールド | 値 | 言語 |
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dc.contributor.author | Gong, Jinn Ouk | en |
dc.contributor.author | Sasaki, Misao | en |
dc.contributor.alternative | 佐々木, 節 | ja |
dc.date.accessioned | 2016-11-16T07:12:45Z | - |
dc.date.available | 2016-11-16T07:12:45Z | - |
dc.date.issued | 2015-07-30 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/2433/217337 | - |
dc.description.abstract | We revisit the notion of slow-roll in the context of general single-field inflation. As a generalization of slow-roll dynamics, we consider an inflaton ϕ in an attractor phase where the time derivative of ϕ is determined by a function of ϕ, ϕ˙=ϕ˙(ϕ). In other words, we consider the case when the number of e-folds N counted backward in time from the end of inflation is solely a function of ϕ, N=. N(ϕ). In this case, it is found that we need a new independent parameter to properly describe the dynamics of the inflaton field in general, in addition to the standard parameters conventionally denoted by ε, η, c<inf>s</inf><sup>2</sup> and s. Two illustrative examples are presented to discuss the non-slow-roll dynamics of the inflaton field consistent with observations. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier | en |
dc.rights | © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. | en |
dc.title | A new parameter in attractor single-field inflation | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | en |
dc.identifier.volume | 747 | - |
dc.identifier.spage | 390 | - |
dc.identifier.epage | 394 | - |
dc.relation.doi | 10.1016/j.physletb.2015.06.023 | - |
dc.textversion | publisher | - |
dcterms.accessRights | open access | - |
出現コレクション: | 学術雑誌掲載論文等 |
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