Nonlinear wave interactions in quantum magnetoplasmas

Details Nonlinear wave interactions in quantum magnetoplasmas Nonlinear wave interactions in quantum magnetoplasmas

2006-10-31

arxiv.org/abs/physics/0610284v1

Phys.Plasmas.13:112111,2006

Physics

Plasma Physics

15 pages, to appear in Physics of Plasmas

Scientific paper

10.1063/1.2390688

Nonlinear interactions involving electrostatic upper-hybrid (UH), ion-cyclotron (IC), lower-hybrid (LH), and Alfven waves in quantum magnetoplasmas are considered. For this purpose, the quantum hydrodynamical equations are used to derive the governing equations for nonlinearly coupled UH, IC, LH, and Alfven waves. The equations are then Fourier analyzed to obtain nonlinear dispersion relations, which admit both decay and modulational instabilities of the UH waves at quantum scales. The growth rates of the instabilities are presented. They can be useful in applications of our work to diagnostics in laboratory and astrophysical settings.

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