Stable three-dimensional modon soliton in plasmas
VM Lashkin - Physical Review E, 2017 - APS
Physical Review E, 2017•APS
We derive the nonlinear equations that describe coupled drift waves and ion acoustic waves
in a plasma. We show that when the coupling to ion acoustic waves is negligible, the
reduced nonlinear equation is a generalization of the Hasegawa-Mima equation to the three-
dimensional (3D) case. We find an exact analytical solution of this equation in the form of a
3D soliton drift wave (3D modon). By numerical simulations we study collisions between the
modons and show that the collisions can be fully elastic.
in a plasma. We show that when the coupling to ion acoustic waves is negligible, the
reduced nonlinear equation is a generalization of the Hasegawa-Mima equation to the three-
dimensional (3D) case. We find an exact analytical solution of this equation in the form of a
3D soliton drift wave (3D modon). By numerical simulations we study collisions between the
modons and show that the collisions can be fully elastic.
We derive the nonlinear equations that describe coupled drift waves and ion acoustic waves in a plasma. We show that when the coupling to ion acoustic waves is negligible, the reduced nonlinear equation is a generalization of the Hasegawa-Mima equation to the three-dimensional (3D) case. We find an exact analytical solution of this equation in the form of a 3D soliton drift wave (3D modon). By numerical simulations we study collisions between the modons and show that the collisions can be fully elastic.
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