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صفحه نخست /Modulation and nonlinear ...
عنوان Modulation and nonlinear evolution of multi-dimensional Langmuir wave envelopes in a relativistic plasma
نوع پژوهش مقاله چاپ‌شده
کلیدواژه‌ها Modulation, Langmuir wave, relativistic plasma
چکیده The modulational instability (MI) and the evolution of weakly nonlinear two-dimensional (2D) Langmuir wave (LW) packets are studied in an unmagnetized collisionless plasma with weakly relativistic electron flow. By using a 2D self-consistent relativistic fluid model and employing the standard multiple-scale technique, a coupled set of Davey-Stewartson (DS)- like equations is derived, which governs the slow modulation and the evolution of LW packets in relativistic plasmas. It is found that the relativistic effects favor the instability of
پژوهشگران مهران شاه منصوری (نفر اول)