Modulation of dust acoustic waves with non-adiabatic dust charge fluctuations

2003 ◽  
Vol 320 (2-3) ◽  
pp. 226-233 ◽  
Author(s):  
Ju-Kui Xue
Keyword(s):  
Acoustic Waves ◽  
Charge Fluctuations ◽  
Dust Acoustic Waves ◽  
Dust Charge ◽  
Dust Acoustic ◽  
Dust Charge Fluctuations

Adiabatic dust-acoustic waves with dust-charge fluctuations

1998 ◽  
Vol 60 (3) ◽  
pp. 541-550 ◽  
Author(s):  
S. V. SINGH ◽  
N. N. RAO
Keyword(s):  
Acoustic Waves ◽  
Kdv Equation ◽  
Soliton Solutions ◽  
Plasma Pressure ◽  
Charge Fluctuations ◽  
Dust Acoustic Waves ◽  
Dust Charge ◽  
Dust Acoustic ◽  
Supersonic Regime ◽  
Dust Charge Fluctuations

We study the effect of charge fluctuations on the propagation of adiabatic linear and nonlinear dust-acoustic waves by considering the electrons and ions to be in Boltzmann equilibria, and the dust grains to satisfy the fluid equations with full adiabatic equation of state. Linear dust-acoustic waves are damped owing to the dust-charge fluctuations, and the damping rate decreases with increasing adiabatic dust pressure. Nonlinear dust-acoustic waves are governed by the set of coupled Boussinesq-like and dust-charge perturbation equations. It is shown that for unidirectional propagation, the Boussinesq-like equation reduces to usual Korteweg–de Vries (KdV) equation. At early times, the localized solutions of the KdV equation are damped owing to the dust-charge perturbations. The soliton amplitude decreases with increasing adiabatic dust plasma pressure and increases with Mach number. Soliton solutions are found only in the supersonic regime.

Resonant electromagnetic wave mixing in a dusty plasma

1996 ◽  
Vol 55 (3) ◽  
pp. 349-358 ◽  
Author(s):  
Jin-Xiu Ma ◽  
M. Y. Yu ◽  
P. K. Shukla
Keyword(s):  
Acoustic Waves ◽  
Electromagnetic Waves ◽  
Phase Conjugation ◽  
Four Wave Mixing ◽  
Dusty Plasmas ◽  
Wave Mixing ◽  
Ion Acoustic Waves ◽  
Charge Fluctuations ◽  
Dust Charge ◽  
Dust Charge Fluctuations

Wave mixing resulting from the resonance of electromagnetic waves with ion acoustic waves modified by dust charge fluctuations is investigated. The corresponding nonlinear susceptibilities are derived and applied to the study of phase conjugation by four-wave mixing. It is shown that dust charge fluctuations can lead to a filling-up of the resonance-induced splitting of the phase-conjugate reflectivity, making the latter a useful tool for the diagnostics of dusty plasmas.

Dust acoustic dressed soliton with dust charge fluctuations

2010 ◽  
Vol 17 (6) ◽  
pp. 063704 ◽  
Author(s):  
H. Asgari ◽  
S. V. Muniandy ◽  
C. S. Wong
Keyword(s):  
Charge Fluctuations ◽  
Dust Charge ◽  
Dust Acoustic ◽  
Dust Charge Fluctuations ◽  
Dressed Soliton

Effect of nonadiabatic dust charge variations on nonlinear dust acoustic waves with nonisothermal ions

2002 ◽  
Vol 9 (4) ◽  
pp. 1150-1156 ◽  
Author(s):  
Samiran Ghosh ◽  
Susmita Sarkar ◽  
Manoranjan Khan ◽  
M. R. Gupta
Keyword(s):  
Acoustic Waves ◽  
Dust Acoustic Waves ◽  
Dust Charge ◽  
Dust Acoustic

Effect of nonadiabaticity of dust charge variation on dust acoustic waves: Generation of dust acoustic shock waves

2001 ◽  
Vol 63 (4) ◽  
Author(s):  
M. R. Gupta ◽  
Susmita Sarkar ◽  
Samiran Ghosh ◽  
M. Debnath ◽  
Manoranjan Khan
Keyword(s):  
Shock Waves ◽  
Acoustic Waves ◽  
Dust Acoustic Waves ◽  
Charge Variation ◽  
Dust Charge ◽  
Dust Acoustic
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