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Quantum Mechanical Plasma Scattering

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タイトル: Quantum Mechanical Plasma Scattering
著者: Oikawa, Shun-ichi 著作を一覧する
Oiwa, Tsuyoshi 著作を一覧する
Shimazaki, Takahiro 著作を一覧する
キーワード: Ehrenfest's theorem
quantum mechanical scattering
発行日: 2010年
出版者: The Japan Society of Plasma Science and Nuclear Fusion Research
誌名: Plasma and Fusion Research
巻: 5
号: S2024
開始ページ: S2024-1
終了ページ: S2024-4
出版社 DOI: 10.1585/pfr.5.S2024
抄録: We have solved the two-dimensional time-dependent Schödinger equation for a particle with and without the interparticle potential in a fusion plasma. It was shown that spatial extent of a free particle grows monotonically in time. Such expansion leads to a spatial extent or size of a proton of the order of the average interparticle separation Δl ≡ n−1/3 ∼ 2 × 10−7 m in a time interval of 106 × Δl/vth ∼ 10−7 sec for a plasma with a density n ∼ 1020 m−3 and a temperature T = mvth2/2 ∼ 10 keV. It was also shown that, under a Coulomb potential, the wavefunction of a charged particle first shrink and expand in time. In the expansion phase, at times t ≥ 10−10 sec, the size of particle in the presence of a Coulomb potential is much larger than that in the absence of it.
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 及川 俊一


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