Nonlinear dust-ion-acoustic waves in a multi-ion plasma with trapped electrons

Abstract

A dusty multi-ion plasma system consisting of non-isothermal (trapped) electrons, Maxwellian (isothermal) light positive ions, warm heavy negative ions and extremely massive charge fluctuating stationary dust have been considered. The dust-ion-acoustic solitary and shock waves associated with negative ion dynamics, Maxwellian (isothermal) positive ions, trapped electrons and charge fluctuating stationary dust have been investigated by employing the reductive perturbation method. The basic features of such dust-ion-acoustic solitary and shock waves have been identified. The implications of our findings in space and laboratory dusty multi-ion plasmas are discussed.

Dust-ion-acoustic nonlinear waves in a dusty electronegative plasma with vortex-like negative ions

“…where Φ 0 = (15U 0 /8A) 2 and Δ = (16B/U 0 ) are, respectively, the height and thickness (normalized by λ Di ) of the DIA solitary waves moving with the speed U 0 . This result is coincided with some other theoretical predictions for vortex like distribution like (Duha et al 2011). Some numerical appreciations of our results have been obtained numerically by analyzing the height and the thickness of the solitary waves by using the general expressions for the coefficients A and B [i.e.…”

“…The current equation for negative ion (viz. I n0 ) follows the vortex-like distribution (Duha et al 2011).…”

Dust-ion-acoustic rogue waves in presence of non-extensive non-thermal electrons

“…Among the modified modes, the dust-ion-acoustic (DIA) waves (DIAWs), which theoretically proposed by Shukla and Silin [1] and experimentally confirmed by Barkan et al [2], has received much attention. Significant research efforts have been devoted in investigating the characteristics of DIAWs in the pair-ion DPM (PIDPM) [5], and degenerate DPM [5,6]. Misra [5] studied the nonlinear propagation of DIA shocks waves in a quantum PIDPM, and numerically discussed the stationary shock solutions.…”

“…Misra [5] studied the nonlinear propagation of DIA shocks waves in a quantum PIDPM, and numerically discussed the stationary shock solutions. Duha et al [6] considered a Multi-ion DPM, and observed both the solitary and shocks structures. Sahu and Tribeche [7] reported the electrostatic dust-acoustic (DA) solitary and shock structures in DPM having non-thermal plasma species.…”

“…The investigation of plasma system containing massive dust grains has a great importance due to its wide applications in laboratory and space dusty plasma medium (DPM) [1,2,3,4,5,6,7]. Dust grains can be either negatively/positively charged massive object, if they are injected into any plasma system [3,4], depending on the ambient environments.…”