Small amplitude dust‐acoustic soliton energy in dusty plasmas with suprathermal polarization force

2021 ◽  
Author(s):  
Saliha Mayout ◽  
Moufida Benzekka ◽  
Rabia Amour
Keyword(s):  
Small Amplitude ◽  
Dusty Plasmas ◽  
Polarization Force ◽  
Dust Acoustic ◽  
Soliton Energy

Effect of the Polarization Force on the Dust-Acoustic Soliton Energy

2016 ◽  
Vol 56 (2) ◽  
pp. 99-103 ◽  
Author(s):  
S. Mayout ◽  
K. Bentabet ◽  
M. Tribeche
Keyword(s):  
Polarization Force ◽  
Dust Acoustic ◽  
Soliton Energy

Effect of Superthermal Polarization Force on Dust Acoustic Nonlinear Structures

2018 ◽  
Vol 73 (9) ◽  
pp. 795-803 ◽  
Author(s):  
Papihra Sethi ◽  
Kuldeep Singh ◽  
N.S. Saini
Keyword(s):  
Solitary Waves ◽  
Burgers Equation ◽  
Perturbation Technique ◽  
Negative Polarity ◽  
Charged Dust ◽  
Nonlinear Structures ◽  
Polarization Force ◽  
Dust Acoustic ◽  
Superthermal Ions ◽  
Soliton Energy

AbstractAn investigation of the dust acoustic shock waves as well as solitary waves in an unmagnetized dusty plasma consisting of fluid of negatively charged dust grains, superthermal ions, and Maxwellian electrons under the influence of superthermally modified polarization force is presented. The polarization force is significantly influenced by superthermal ions. Reductive perturbation technique has been used to derive the Korteweg-de Vries-Burgers equation. It is illustrated that the superthermal polarization force significantly alters the characteristics of the negative polarity shock and solitary waves. It is also examined that the soliton energy gets depleted by the influence of superthermal polarization force.

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.

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