Effects of Landau damping on finite amplitude low-frequency nonlinear waves in a dusty plasma
الموضوعات : Journal of Theoretical and Applied Physics
Arnab Sikdar
1
(Department of Mathematics, Calcutta Institute of Engineering and Management)
Manoranjan Khan
2
(Department of Instrumentation Science, Jadavpur University)
الکلمات المفتاحية: Landau damping, Dusty plasma, Korteweg–de Vries equation, Dust acoustic wave,
ملخص المقالة :
AbstractThe effect of linear ion Landau damping on weakly nonlinear as well as weakly dispersive low-frequency waves in a dusty plasma is investigated. The standard perturbative approach leads to the Korteweg–de Vries (KdV) equation with a linear Landau damping term for the dynamics of the low-frequency nonlinear wave. Landau damping causes the wave amplitude to decay with time and the dust charge variation enhances the damping rate.
