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On annihilation of the relativistic electron vortex pair in collisionless plasmas
https://repo.qst.go.jp/records/49577
https://repo.qst.go.jp/records/4957798c82d11-94c1-4a51-8d44-f51d799ad404
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-02-18 | |||||
| タイトル | ||||||
| タイトル | On annihilation of the relativistic electron vortex pair in collisionless plasmas | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
V., Lezhnin K.
× V., Lezhnin K.× F., Kamenets F.× Timur, Esirkepov× Bulanov, Sergey× エシロケポフ ティムル× ブラノフ セルゲイ |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In contrast to hydrodynamic vortices, vortices in a plasma contain an electric current circulating around the centre of the vortex, which generates a magnetic field localized inside. Using computer simulations, we demonstrate that the magnetic field associated with the vortex gives rise to a mechanism of dissipation of the vortex pair in a collisionless plasma, leading to fast annihilation of the magnetic field with its energy transforming into the energy of fast electrons, secondary vortices and plasma waves. Two major contributors to the energy damping of a double vortex system, namely, magnetic field annihilation and secondary vortex formation, are regulated by the size of the vortex with respect to the electron skin depth, which scales with the electron gamma factor, gamma_e , as R/d_e ~ gamma_e^{1/2} . Magnetic field annihilation appears to be dominant in mildly relativistic vortices, while for the ultrarelativistic case, secondary vortex formation is the main channel for damping of the initial double vortex system. | |||||
| 書誌情報 |
Journal of Plasma Physics 巻 84, 号 6, p. 905840610, 発行日 2018-11 |
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| 出版者 | ||||||
| 出版者 | Cambridge University Press | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0022-3778 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1017/S0022377818001162 | |||||
