An Asymptotic Method for the Vlasov Equation
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概要
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The present paper is concerned with a long time asymptotic behaviour of a weakly Landau-damped, monochromatic plasma wave in the collisionless electron plasma, the amplitude of which is assumed small but finite. The theoty is based on an asymptotic expansion in terms of the decay constant of the Landau damping. The method of characteristics to integrate the Vlasov equation is brought into the scope of the asymptotic method. It is shown then that the slowly varying part of the amplitude Landau-damps if the decay time is much shorter than the period of the amplitude oscillation, whilst it oscillates if they become the same order.
- 社団法人日本物理学会の論文
- 1969-12-05
著者
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Taniuti Tosiya
Department Of Engineering Natural Science-mathematics Chubu University
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Sugihara Ryo
Institute Of Plasma Physics Nagoya University
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Imamura Tsutomu
Department Of Physics Kaansei Gakuin University
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