Pressure role on solitary waves in charge fluctuating complex superthermal plasma
Abuzarli MuradDepartment of Physics , University of Malakand , 18800 , Dir(L) , Khyber Pakhtunkhwa , PakistanK. AzizDepartment of Physics , University of Malakand , 18800 , Dir(L) , Khyber Pakhtunkhwa , PakistanZakir UllahDepartment of Physics , University of Malakand , 18800 , Dir(L) , Khyber Pakhtunkhwa , PakistanQ. HaqueNational Center for Physics, Quaid-i-Azam University Campus, Shahdra Valley Road, Islamabad 44000, Pakistan; Theoretical Physics Division PINSTECH, P.O Nilore, Islamabad, PakistanM. Nasir KhattakDepartment of Physics, Khushal Khan Khattak University, Karak, Khyber Pakhtunkhwa, 27200, PakistanMuhammad SohailInstitute of Chemical Sciences, University of Swat, Khyber Pakhtunkhwa 19120, Pakistan
2021en
ABI
Abstract
Abstract The pressure effect on the small amplitude solitary waves in a complex superthermal plasma composed of electrons, ions and dust is discussed. The Korteweg-de-Vries (KdV) equation and its model solution are derived using standard reduction perturbation techniques. Pressure is shown to significantly affects the existing mode in a superthermal environment. The imperative role is played here by the spectral index κ and the dust charge that strongly affect the properties of the nonlinear structures. The results obtained are compared with those acquired by the homotopy perturbation method (HPM). We see a strong correlation in the small time limit with our analytical calculations and those obtained by the HPM technique.
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