Heavy Ion-Acoustic Soliton and Dressed Soliton in an Unmagnetized Weakly and Strongly Coupled Plasma

This article investigates the nonlinear propagation of the heavy ion-acoustic (HIA) soliton and dressed soliton in an unmagnetized weakly and strongly coupled plasma having heavy ions fluid, hybrid Tsallis-nonthermal-distributed electrons and Maxwellian lighter ions. To do so, the Korteweg-de Vries (KdV) and inhomogeneous KdV-like equations are derived by implementing the reductive perturbation technique. It is observed that the coupling parameter significantly modifies the electrostatic HIA soliton and dressed soliton as well as the normalized electric field with the presence of not only nonextensive but also nonthermal electrons. The HIA dressed solitons are also first time reported in the considered plasmas, which exists in both weakly and strongly coupled regimes. The outcomes might be beneficial to comprehend and predict the nature of HIA structures not only in astrophysical and space environments but also further experimental verification in laboratory plasmas.