Nonlinear dispersion in the process of quasistationary excitation of plasma waves |
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Authors: | A I Matveev |
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Institution: | (1) Mechanical Engineering Research Institute, Mal. Kharitonjevsky Str. 4, 101990 Moscow, Russia;(2) Ezra Str. 24/5, 76201 Rehovot, Israel |
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Abstract: | A quasistationary problem of Lengmuir wave excitation by external sources in uniform plasma is considered. It is established
that energy is transferred from external sources to the wave if during its excitation the wave phase velocity changes in addition
to an increase in the wave amplitude. A nonlinear dispersion equation for the plasma wave of finite amplitude excited by the
external sources is derived. The nonlinear contribution of this dispersion equation is caused not only by an increase in the
wave amplitude but also by the wave frequency shift. |
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Keywords: | |
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