Guiding-center dynamics of vortex dipoles in Bose-Einstein condensates

@article{Middelkamp2011GuidingcenterDO,
  title={Guiding-center dynamics of vortex dipoles in Bose-Einstein condensates},
  author={Stephan Middelkamp and Pedro J. Torres and P G Kevrekidis and Dimitri J. Frantzeskakis and Ricardo Carretero-Gonz{\'a}lez and Peter Schmelcher and Daniel V. Freilich and David S Hall},
  journal={Physical Review A},
  year={2011},
  volume={84},
  pages={011605}
}
A quantized vortex dipole is the simplest vortex molecule, comprising two countercirculating vortex lines in a superfluid. Although vortex dipoles are endemic in two-dimensional superfluids, the precise details of their dynamics have remained largely unexplored. We present here several striking observations of vortex dipoles in dilute-gas Bose-Einstein condensates, and develop a vortex-particle model that generates vortex line trajectories that are in good agreement with the experimental data… Expand
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