Solitonic and chaotic behaviors of a (3+1)-dimensional nonlinear Schrödinger equation in a magnetized electron-positron-ion plasma

摘要: In a magnetized e-p-i plasma with two-electron temperatures, the (3+1)-dimensional nonlinear Schrodinger equation for ion-acoustic envelope solitons is hereby investigated. Bright and dark soliton solutions are both obtained. It found that amplitude inversely related to P, Q R, R respectively as coefficients of dispersive term, term combined effect transverse perturbation magnetic field. Head-on interactions displayed, decreasing, can be transferred into overtaking ones. bound-state obtained, interaction period decreases increasing. Both head-on between two such transformed one Upon introduction external perturbation, developed weak chaos observed. Phase projections power spectra presented. Difference chaotic motions roots in inequality perturbed terms. Developed weakened or frequency