Modulational Instability Analysis of Four-Component Dusty Plasma System

Dust in plasma is a major hindrance for many scientific activities that occur in space, fusion, and so on. One of the crucial properties that makes sense for such hindrance is its nonlinearity. Existence of solitons proves the condition of nonlinearity and by enabling the significance of such solitons, nonlinearity can be minimized to an extent. Our own selves conceptually probed the four-component dusty plasma system and the four components are positive and negative dust components, two components of electrons and non-thermal ions modeled by Boltzmann distributions. The nonlinear reductive perturbation technique is employed and we derived the nonlinear Schrödinger equation (NLSE), which governs the nonlinear dynamics of the plasmic system. Furthermore, we invoke the modulational instability (MI) analysis to inspect the stability of plasmic solitons and the instability/stability regions of dust ion acoustic (DIA) waves are highly explored.