June 20, 2024
Alireza AbdiKian

Alireza AbdiKian

Academic rank: Associate Professor
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Education: Ph.D in Theoretical Physics (Plasma)
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Faculty: science

Research

Title Electron-acoustic supernonlinear waves and their multistability in the framework of the nonlinear Schrödinger equation
Type Article
Keywords
electron-acoustic wave, dynamical system, phase plane analysis, nonextensive plasma
Journal COMMUNICATIONS IN THEORETICAL PHYSICS
Researchers Alireza AbdiKian

Abstract

Finite-amplitude supernonlinear electron-acoustic waves (EAWs) are investigated under the nonlinear Schrödinger (NLS) equation in a plasma system that is composed of cold electron fluid, immobile ions and q-nonextensive hot electrons. Using the wave transfiguration, the NLS equation is deduced in a dynamical system. The presence of finite-amplitude nonlinear and supernonlinear EAWs is shown by phase plane analysis. The effects of the nonextensive parameter (q) and the speed of waves (v) on different traveling wave solutions of EAWs are presented. Furthermore, by introducing a small external periodic force in the dynamical system, multistability behaviors of EAWs under the NLS equation are shown for the first time in classical plasmas.