Solitary Kinetic Alfvén Waves in a Low-β Dusty Plasma
CHEN Yin-Hua, LU Wei
Department of Modern Physics, University of Science and Technology of China, Hefei 230027
Solitary Kinetic Alfvén Waves in a Low-β Dusty Plasma
CHEN Yin-Hua;LU Wei
Department of Modern Physics, University of Science and Technology of China, Hefei 230027
关键词 ：
52.35.Sb ,
52.25.Vy ,
52.35.Dm
Abstract ： The nonlinear kinetic Alfvén waves in a low-β (0 << β << 1) dusty plasma have been investigated with the fluid model of three-component plasma. The nonlinear equation governing the perturbation density of electrons in a form of the energy integral has been derived. In the approximation of small amplitude, the soliton solution for the perturbation density of electrons is found, and the characteristics of solitons in different range of plasma parameters is studied numerically. The results show that the density dip or hump can be formed in a dusty plasma for different ranges of parameters, the amplitude of density dip is enhanced and the amplitude of density hump is reduced with increasing dust grain content.
Key words ：
52.35.Sb
52.25.Vy
52.35.Dm
出版日期: 2000-02-01
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2000, Vol. 17 
