Abderrzak Merriche

• University of Sciences and Technology Houari Boumediene

The investigation focuses on examining the characteristics of dust acoustic double-layers (DA-DLs) in the presence of adiabatically trapped-nonextensive ions featuring Tsallis-Gurevich distribution. Indeed, the ion-density and pseudo-potential expressions are formulated in terms of transcendental functions, allowing for a detailed analysis of Dust...

A first theoretical attempt is made to understand the characteristics of dust acoustic shock waves (DASWs) in a polarized electron-depleted plasma with a mixed nonextensive high energy–tail ion distribution and to examine the impact of the generalized nonthermal polarization force on DASWs in an electron-depleted dusty plasma. First, a short numeri...

The present article explores the effects of nonthermal nonextensive polarization force on nonlinear dust acoustic (DA) soliton and its energy. The nonthermal (or Cairns) polarization force (PF) acting on dust grains in a three-component unmagnetized dusty plasma is then revisited within the theoretical framework of the Tsallis statistical mechanics...

Dans cette communication nous analysons l'influence de la force de polarisation non thermique piégée sur les ondes acoustique poussiéreuses associé à un plasma poussiéreux non collisionnel, composé d'électrons maxwelliens, de grains de poussière chargés négativement et d'ions non thermiques piégés. Pour ce faire, une distribution tridimensionnelle...

Both linear and weakly nonlinear dust‐acoustic (DA) solitons propagation are revisited in the presence of adiabatically trapped‐nonextensive ions. A physically relevant distribution (called Tsallis‐Gurevich ions distribution) is outlined here for the first time. The effect of particle trapping has been taken into account, resulting in a new express...

In this paper, the problem of nonlinear ion-acoustic (IA) solitary waves in an electron-ion plasma is analyzed, assuming electrons obey the κ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69p...

The problem of dust-ion-acoustic (DIA) solitons is addressed in an electronegative collisionless dusty plasma with the presence of trapped-nonthermal electrons. To do this, we revisited the Cairns-Gurevich distribution that describes, concurrently, the evolution of the energetic electrons and those trapped in the plasma potential and analytically e...

The head-on collision between two ion-acoustic solitons (IASs) is studied in pair ions plasmas with hybrid Cairns–Tsallis-distributed electrons. The chosen model is inspired from the experimental studies of Ichiki et al. [Phys. Plasmas 8, 4275 (2001)]. The extended Poincaré–Lighthill–Kuo (PLK) method is employed to obtain the phase shift due to the...

The problem of electron- acoustic (EA) rogue waves in a plasma consisting of fluid cold electrons, nonthermal nonextensive electrons and stationary ions, is addressed. A standard multiple scale method has been carried out to derive a nonlinear Schrödinger-like equation. The coefficients of dispersion and nonlinearity depend on the nonextensive and...

The problem of the head-on collision of two ion- acoustic solitary waves (IASWs) is addressed in electronegative plasmas with a nonextensive electron velocity distribution. Our plasma model is inspired from the experimental studies of Ichiki et al. [Phys. Plasmas 8, 4275 (2001)]. Using the extended Poincare-Lighthill-Kuo (PLK) perturbation method,...

Notre présente étude consiste à revisiter, au moyen d'une approche analytique et numérique, les structures acoustiques poussiéreuses non linéaires associées à un plasma complexe dans le contexte du formalisme non extensif. Pour ce faire, nous avons utilisé les équations de base du modèle fluide et certains résultats de la théorie cinétique. Nous no...

The seminal paper of Mamun et al. [Phys. Plasmas 3, 702 (1996)] is revisited within the theoretical framework of the Tsallis statistical mechanics. The nonextensivity may originate from the correlation or long-range interactions in the dusty plasma. It is found that depending on whether the nonextensive parameter q is positive or negative, the dus...