Head-on collisions of two concentric ring-shaped dark or antidark solitons of a generalized nonlinear Schrödinger equation are studied analytically and numerically. Collision-induced phase shifts of the solitons are derived, and the analytical predictions are found to be in good agreement with the results of direct simulations.
|Number of pages||8|
|Journal||Physics Letters, Section A: General, Atomic and Solid State Physics|
|State||Published - 2 Jul 2001|