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

محورهای موضوعی : Journal of Theoretical and Applied Physics

Rashmi Srivastava ¹ , Hitendra K. Malik ² , Devi Singh ³

1 - Faculty of Engineering and Technology, Manav Rachna International Institute of Research and Studies
2 - Plasma Waves and Particle Acceleration Laboratory, Indian Institute of Technology Delhi
3 - Faculty of Engineering and Technology, Manav Rachna International Institute of Research and Studies

تاریخ پذیرش : 1398/12/11 تاریخ انتشار : 1398/12/11

کلید واژه: Dusty plasma, Two, temperature ion, Soliton,

چکیده مقاله :

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.