Nonlinear Wave Modulation in Cold Magnetized Plasmas

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概要

• 論文の詳細を見る

• Nonlinear modulation of waves in a cold plasma is investigated with a modification of a perturbation method developed by Taniuti and Yajima. In particular, it is shown that a modulated electron-cyclotron wave is influenced by a slow motion of the plasma and that there is a critical wavenumber for the onset of modulational instability. The critical wavenumber is found to be independent of the direction of propagation, i.e., k_<crit>=ω_<pe>/c√<3>, where ω_<pe> and c are the plasma frequency and the light velocity, respectively. A lower hybrid wave, which propagates perpendicular to a uniform magnetic field, is shown to be stable against the wave modulation and in the limit of small wavenumber the modulated wave is an oscillatory solution of the Korteweg-de Vries equation obtained by Gardner and Morikawa.

• 社団法人日本物理学会の論文
• 1972-12-05

著者

• KAKO Masashi

  Institute of Plasma Physics, Nagoya University

• Kako Masashi

  Institute Of Plasma Physics Nagoya University

• Kato Masashi

  Institute of Plasma Physics, Nagoya University

関連論文

• Hole Equilibria in a Quasi-Cold Plasma
• Nonlinear Behaviors of Ion-Wave
• Nonlinear Wave Modulation in a Magnetized Collisionless Plasma
• Nonlinear Wave Modulation in Cold Magnetized Plasmas
• D Nonlinear Wave Modulation in Magnetized Collisionless Plasmas (Part IV. Applications to the Vlasov Plasma)

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