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ファイル | 記述 | サイズ | フォーマット | |
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PhysRevD.91.076003.pdf | 660.1 kB | Adobe PDF | 見る/開く |
タイトル: | Parametric instability of classical Yang-Mills fields in a color magnetic background |
著者: | Tsutsui, Shoichiro Iida, Hideaki Kunihiro, Teiji Ohnishi, Akira https://orcid.org/0000-0003-1513-0468 (unconfirmed) |
著者名の別形: | 筒井, 翔一朗 國廣, 悌二 大西, 明 |
発行日: | 1-Apr-2015 |
出版者: | American Physical Society |
誌名: | Physical Review D |
巻: | 91 |
号: | 7 |
論文番号: | 076003 |
抄録: | We investigate instabilities of classical Yang-Mills fields in a time-dependent spatially homogeneous color magnetic background field in a nonexpanding geometry for elucidating the earliest stage dynamics of ultrarelativistic heavy-ion collisions. The background field configuration considered in this article is spatially homogeneous and temporally periodic and is introduced by Berges-Scheffler-Schlichting-Sexty (BSSS). We discuss the whole structure of instability bands of fluctuations around the BSSS background gauge field on the basis of Floquet theory, which enables us to discuss the stability in a systematic way. We find various instability bands on the (pz, pT) plane. These instability bands are caused by parametric resonance despite the fact that the momentum dependence of the growth rate for |p|≤B is similar to a Nielsen-Olesen instability. Moreover, some of the instability bands are found to emerge not only in the low-momentum but also in the high-momentum region, typically of the order of the saturation momentum as |p|∼B∼Qs. |
著作権等: | © 2015 American Physical Society |
URI: | http://hdl.handle.net/2433/233189 |
DOI(出版社版): | 10.1103/PhysRevD.91.076003 |
出現コレクション: | 学術雑誌掲載論文等 |
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