TY - JOUR
T1 - Manipulation of vortices by localized impurities in Bose-Einstein condensates
AU - Davis, M. C.
AU - Carretero-González, R.
AU - Shi, Z.
AU - Law, K. J.H.
AU - Kevrekidis, P. G.
AU - Anderson, B. P.
PY - 2009/8/6
Y1 - 2009/8/6
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevA.80.023604
DO - 10.1103/PhysRevA.80.023604
M3 - Article
AN - SCOPUS:68949159936
SN - 1050-2947
VL - 80
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 2
M1 - 023604
ER -