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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| PhysRevD.83.103524.pdf | 1.98 MB | Adobe PDF | 見る/開く |
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| DCフィールド | 値 | 言語 |
|---|---|---|
| dc.contributor.author | Kobayashi, Tsutomu | en |
| dc.contributor.author | Yamaguchi, Masahide | en |
| dc.contributor.author | Yokoyama, Jun’ichi | en |
| dc.contributor.alternative | 小林, 努 | ja |
| dc.date.accessioned | 2011-09-09T07:34:32Z | - |
| dc.date.available | 2011-09-09T07:34:32Z | - |
| dc.date.issued | 2011-05 | - |
| dc.identifier.issn | 1550-7998 | - |
| dc.identifier.uri | http://hdl.handle.net/2433/145986 | - |
| dc.description.abstract | We present a comprehensive study of primordial fluctuations generated from G inflation, in which the inflaton Lagrangian is of the form K(ϕ,X)-G(ϕ,X)□ϕ with X=-(∂ϕ)[2]/2. The Lagrangian still gives rise to second-order gravitational and scalar field equations, and thus offers a more generic class of single-field inflation than ever studied, with a richer phenomenology. We compute the power spectrum and the bispectrum, and clarify how the non-Gaussian amplitude depends upon parameters such as the sound speed. In so doing we try to keep as great generality as possible, allowing for non slow-roll and deviation from the exact scale invariance. | en |
| dc.format.mimetype | application/pdf | - |
| dc.language.iso | eng | - |
| dc.publisher | American Physical Society | en |
| dc.rights | © 2011 American Physical Society | en |
| dc.title | Primordial non-Gaussianity from G inflation | en |
| dc.type | journal article | - |
| dc.type.niitype | Journal Article | - |
| dc.identifier.ncid | AA00773624 | - |
| dc.identifier.jtitle | Physical Review D | en |
| dc.identifier.volume | 83 | - |
| dc.identifier.issue | 10 | - |
| dc.relation.doi | 10.1103/PhysRevD.83.103524 | - |
| dc.textversion | publisher | - |
| dc.identifier.artnum | 103524 | - |
| 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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