Effect of nonuniform dust charge on dust-acoustic soliton in an inhomogeneous plasma

2004 ◽  
Vol 11 (11) ◽  
pp. 5108-5113 ◽  
Author(s):  
Yang-fang Li ◽  
J. X. Ma ◽  
De-long Xiao
Keyword(s):  
Inhomogeneous Plasma ◽  
Dust Charge ◽  
Dust Acoustic

scholarly journals Comparative study of dust acoustic solitons in two-temperature ion homogeneous and inhomogeneous plasmas

2020 ◽  
Vol 14 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Rashmi Srivastava ◽  
Hitendra K. Malik ◽  
Devi Singh
Keyword(s):  
Solitary Waves ◽  
Inhomogeneous Plasma ◽  
Low Frequency ◽  
Soliton Solutions ◽  
Dusty Plasmas ◽  
Number Density ◽  
Dust Charge ◽  
Plasma Species ◽  
Dust Acoustic ◽  
Two Temperature

AbstractThe dust acoustic solitary waves are theoretically investigated in dusty plasmas for different cases of with and without density gradients. These low-frequency solitary waves are studied using appropriate Korteweg–de Vries equations obtained using relevant stretched coordinates. The soliton solutions in homogeneous plasma, weakly inhomogeneous plasma and strongly inhomogeneous plasma, are thoroughly investigated for studying the effect of different parameters like dust charge and density of all the plasma species on the soliton profiles. The combination of the dust charge with its number density changes the dynamics of the solitons and that is further affected by the number density of the hot ion with respect to the cold ions.

Symmetries, conservation laws and dust acoustic solitons of two-temperature ion in inhomogeneous plasma

2021 ◽  
pp. 2150071
Author(s):  
Amjad Hussain ◽  
Adil Jhangeer ◽  
Naseem Abbas
Keyword(s):  
Solitary Waves ◽  
Inhomogeneous Plasma ◽  
Sufficient Conditions ◽  
Algebraic Method ◽  
Ion Density ◽  
Dust Charge ◽  
Weak Density ◽  
Dust Acoustic ◽  
Physical Impact ◽  
Two Temperature

In this paper, we investigate dust acoustic solitary waves in dusty inhomogeneous plasma with a weak density gradient. For this, Lie analysis is utilized and solitary waves are obtained with the aid of the newly extended direct algebraic method. The solutions so obtained carry a variety of some new families including dark-bright, dark, dark-singular, and singular solutions of types [Formula: see text] and [Formula: see text]. The sufficient conditions for the existence of these structures are given. Meantime, the effect of parameters like dust charge, cold ion density, and number density on the soliton structures are investigated in detail, which shows that dust charge affects the amplitude but density does not put any impact on soliton’s profile. A graphical approach is practiced to discuss the physical impact of the problem. Finally, by using a multiplier approach, conserved quantities are reported.

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

Localized coherent nonlinear wave structures in dusty plasma with non-thermal ions

2007 ◽  
Vol 73 (6) ◽  
pp. 921-932 ◽  
Author(s):  
TARSEM SINGH GILL ◽  
CHANCHAL BEDI ◽  
NARESHPAL SINGH SAINI ◽  
HARVINDER KAUR
Keyword(s):  
Perturbation Method ◽  
Solitary Waves ◽  
Vries Equation ◽  
Thermal Parameter ◽  
Reductive Perturbation Method ◽  
Double Layers ◽  
Dust Charge ◽  
Dust Acoustic Solitary Waves ◽  
Reductive Perturbation ◽  
Dust Acoustic

AbstractIn the present research paper, the characteristics of dust-acoustic solitary waves (DASWs) and double layers (DLs) are studied. Ions are treated as non-thermal and variable dust charge is considered. The Korteweg–de Vries equation is derived using a reductive perturbation method. It is noticed that compressive solitons are obtained up to a certain range of relative density δ (=ni0/ne0) beyond which rarefactive solitons are observed. The study is further extended to investigate the possibility of DLs. Only compressive DLs are permissible. Both DASWs and DLs are sensitive to variation of the non-thermal parameter.

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