Elements of Vortex-Dipole Dynamics in a Nonuniform Bose–Einstein Condensate

  title={Elements of Vortex-Dipole Dynamics in a Nonuniform Bose–Einstein Condensate},
  author={Roger Sakhel and Asaad R Sakhel},
  journal={Journal of Low Temperature Physics},
The elements of the vortex-dipole (VD) dynamics are numerically examined in a nonuniform Bose–Einstein condensate (BEC) using the time-dependent Gross–Pitaevskii equation that is solved by the split-step Crank–Nicolson method in real time. The BEC is trapped in a harmonic potential, surrounded by a hard-wall box potential, and stirred by an attractive focusing laser. In this regard, we particularly refer to a recent examination by Aioi et al. (Phys. Rev. X, 1: 021003, 2011) who presented… 
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