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Axionlike Origin of the Primordial Density Perturbation
http://hdl.handle.net/2237/00032729
http://hdl.handle.net/2237/0003272999f59062-1a98-40bd-b80d-c2a3a5aefe85
名前 / ファイル | ライセンス | アクション |
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PhysRevLett_125_011302 (207.1 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-10-14 | |||||
タイトル | ||||||
タイトル | Axionlike Origin of the Primordial Density Perturbation | |||||
言語 | en | |||||
著者 |
Kobayashi, Takeshi
× Kobayashi, Takeshi |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2020 American Physical Society | |||||
抄録 | ||||||
内容記述 | We show that an axionlike field coupled to a new confining gauge group can generate the primordial density perturbation in the postinflation Universe. The axion decay constant and strong coupling scale are uniquely determined by observations of the density perturbation, which further suggest a temporal deconfinement of the gauge group after inflation. The resulting temperature-dependent axion potential, together with its periodic nature, gives rise to the red-tilted density perturbation, with a positive local-type non-Gaussianity of order unity. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Physical Society | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevLett.125.011302 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0031-9007 | |||||
書誌情報 |
en : Physical Review Letters 巻 125, 号 1, p. 011302, 発行日 2020-07 |
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著者版フラグ | ||||||
値 | publisher |