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 , Manoranjan Khan ²

1 - Department of Mathematics, Calcutta Institute of Engineering and Management
2 - Department of Instrumentation Science, Jadavpur University

تاريخ التأكيد : 06 الخميس , رمضان, 1438 تاريخ الإصدار : 06 الخميس , رمضان, 1438

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.