Charged Particle Transport in Magnetic Turbulence

Kuramitsu, Yasuhiro; Hada, Tohru

Contributions to Plasma Physics, 2025

アクセス数:49件（2025-07-27 19:38 集計）

固定URL: https://hdl.handle.net/11094/101975

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論文情報

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タイトル
Charged Particle Transport in Magnetic Turbulence
著者
NRID
1000070456929 1000070456929
researchmap permalink
yasuhiro_kuramitsu yasuhiro_kuramitsu
Scopus Author ID
24776362200 24776362200
ORCID
0000-0002-0160-2260 0000-0002-0160-2260
著者名
Kuramitsu, Yasuhiro
NRID
1000030218490 1000030218490
著者名
Hada, Tohru
キーワード等
magnetohydrodynamics (MHD)
momentum diffusion
particle transport
turbulence
内容
This is the peer reviewed version of the following article: Kuramitsu Y., Hada T.. Charged Particle Transport in Magnetic Turbulence. Contributions to Plasma Physics (2025), which has been published in final form at https://doi.org/10.1002/ctpp.70018. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
抄録
We discuss charged particle transport in a turbulent magnetic field. The pitch angle diffusion is essential to the transport processes of energetic particles in real and momentum spaces. We integrate particle trajectories in time under the influence of the turbulent magnetic field given as a superposition of parallel-propagating magnetohydrodynamic waves (“slab-turbulence”). As in the standard theory for cosmic ray transports, the small wave amplitude and the random phase approximation are the fundamental assumptions of the quasi-linear theory. In the presence of large amplitude waves, our numerical study shows the anomalous pitch angle diffusion of the energetic particles. In the presence of waves with strong phase correlation, where the MHD turbulence is represented as intermittent wave packets, the particles are transported in the momentum space due to the mirror reflections rather than the pitch angle diffusion. The particle motions are mostly ballistic and occasionally reflected by the intermittent wave packets; thus, the spatial transport of the energetic particles can be super-diffusive in the presence of large amplitude MHD waves with strong phase correlation.
出版者
John Wiley and Sons Inc
収録物名
Contributions to Plasma Physics
刊行年月
2025-06-15
言語
英語
ハンドルURL
https://hdl.handle.net/11094/101975
PISSN
08631042
eISSN
15213986
関連情報 (isVersionOf)
DOI (出版社版)
https://doi.org/10.1002/ctpp.70018
アクセス権
embargoed access
権利情報
© 2025 Wiley-VCH GmbH.
The full-text file will be made open to the public on 15 June 2026 in accordance with the publisher's policy.
出版タイプ
Accepted Manuscript
カテゴリ
学術雑誌論文 Journal Article