Kadomtsev–Petviashvili solitons in a warm electronegative plasma with q-nonextensive electrons

Abstract

The Kadomtsev–Petviashvili (KP) equation for electrostatic ion acoustic solitons in a warm electronegative plasma with q-nonextensive electrons is derived. It is pointed out with the help of some suitable parameters that the phase speed of two acoustic modes and two-dimensional KP solitons are significantly modified by variation of quantities such as q (nonextensive parameter), α (the ratio of the mass of negative to positive ion), μ (the electron to positive ion number density ratio) and (the ratio of positive ion to electron temperature).