Abstract
Abstract This study explores the propagation of nonlinear electron acoustic waves (EAWs) in an unmagnetized plasma consisting of dynamical inertial cold electrons, hot electrons following (r, q) distribution, a warm electron beam, and background ions. The fluid equations representing the plasma system are reduced to Kadomtsev–Petviashvili (KP) equation for EAWs by using the reductive perturbation technique. Our findings reveal that several key factors significantly influence the propagation and interaction properties of electron acoustic solitary waves (EASWs). These factors include the spectral indices r and q of the generalized (r, q) distribution, the concentrations of cold, hot, and beam electrons, as well as the temperature ratios among these electron populations. Additionally, we investigate the possible types of overtaking interactions between two Kadomtsev–Petviashvili (KP) solitons. The spatial regime for the interaction of two solitons is found to vary depending on the effect of plasma parameters on a single soliton behavior. This comprehensive analysis provides valuable insights into the complex interactions between EASWs, which are relevant for understanding phenomena in laboratory, space, and astrophysical plasmas.
Published Version
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