Influence of global features of a Bose-Einstein condensate on the vortex velocity

  title={Influence of global features of a Bose-Einstein condensate on the vortex velocity},
  author={Horacio M. Cataldo and Dora M. Jezek},
  journal={The European Physical Journal D},
We study the way in which the geometry of the trapping potential affects the vortex velocity in a Bose-Einstein condensate confined by a toroidal trap. We calculate the vortex precession velocity through a simple relationship between such a velocity and the gradient of the numerically obtained vortex energy. We observe that our results correspond very closely to the velocity calculated through time evolution simulations. However, we find that the estimates derived from available velocity field… Expand
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