The longitudinal plasma modes in mDM-plasma system
Y. Z. Xiong,
H. Chen,
S. Q. Liu
Affiliations
Y. Z. Xiong
Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Institute of Fusion Energy and Plasma Application, Nanchang University, Nanchang 330031, China
H. Chen
Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Institute of Fusion Energy and Plasma Application, Nanchang University, Nanchang 330031, China
S. Q. Liu
Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Institute of Fusion Energy and Plasma Application, Nanchang University, Nanchang 330031, China
In the present paper, the dispersions and Landau damping of the ion acoustic waves in the dark plasma system with non-extensive distributed millicharged dark matter particles are investigated under the kinetic theory regimes. The result shows that the peculiarities of the Landau damping of the waves depend on the parameter q of the distribution function. However, the growth rate due to the streaming dark matter is acutely tiny compared to the damping rates arising from the electrons and ions. As a result, both Maxwellian and non-extensive distributions are strongly damped by the dark matter. Hence, the waves cannot be stimulated yet.
