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  • vortex formation in nonlinearly coupled modes in a magnetized quantum plasma

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 820
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     linear and nonlinear properties of coupled modes in a magnetized quantum plasma in the presence of electron fermi pressure are studied in a nonuniform magnetoplasma composed of electrons, ions, and extremely massive and negatively charged immobile dust grains. stationary solutions of the nonlinear equations that govern the dynamics of coupled modes are presented. it is found that electrostatic dipolar vortex structure can form in such a plasma. the dipolar structures in dense plasmas are observed to be formed on a much shorter scalelength by comparison with their classical counterparts. it is found that the increasing fermi temperature shortens the scalelength over which the nonlinear coherent structures are formed. the relevance of the present investigation with regard to the dense astrophysical plasmas is also pointed out.

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