Two-dimensional dark soliton in the nonlinear Schroedinger equation

Details Two-dimensional dark soliton in the nonlinear Schroedinger equation Two-dimensional dark soliton in the nonlinear Schroedinger equation

2006-07-31

arxiv.org/abs/nlin/0607072v1

Nonlinear Sciences

Pattern Formation and Solitons

7 figures

Scientific paper

10.1016/j.physleta.2006.07.039

Two-dimensional gray solitons to the nonlinear Schroedinger equation are numerically created by two processes to show its robustness. One is transverse instability of a one-dimensional gray soliton, and another is a pair annihilation of a vortex and an antivortex. The two-dimensional dark solitons are anisotropic and propagate in a certain direction. The two-dimensional dark soliton is stable against the head-on collision. The effective mass of the two-dimensional dark soliton is evaluated from the motion in a harmonic potential.

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