Manipulation of vortices by localized impurities in Bose-Einstein condensates

M. C. Davis, R. Carretero-González, Z. Shi, K. J H Law, P. G. Kevrekidis, Brian P Anderson

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Abstract

We consider the manipulation of Bose-Einstein condensate vortices by optical potentials generated by focused laser beams. It is shown that for appropriate choices of the laser strength and width it is possible to successfully transport vortices to various positions inside the trap confining the condensate atoms. Furthermore, the full bifurcation structure of possible stationary single-charge vortex solutions in a harmonic potential with this type of impurity is elucidated. The case when a moving vortex is captured by a stationary laser beam is also studied, as well as the possibility of dragging the vortex by means of periodic optical lattices.

Original languageEnglish (US)
Article number023604
JournalPhysical Review A
Volume80
Issue number2
DOIs
Publication statusPublished - Aug 6 2009

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Davis, M. C., Carretero-González, R., Shi, Z., Law, K. J. H., Kevrekidis, P. G., & Anderson, B. P. (2009). Manipulation of vortices by localized impurities in Bose-Einstein condensates. Physical Review A, 80(2), [023604]. https://doi.org/10.1103/PhysRevA.80.023604