Stable and unstable vortices in multicomponent Bose-Einstein condensates
arXiv:cond-mat/9910015 · doi:10.1103/PhysRevLett.84.4264
Abstract
We study the stability and dynamics of vortices in two-species condensates as prepared in the recent JILA experiment (M. R. Andrews {\em et al.}, Phys. Rev. Lett. 83 (1999) 2498). We find that of the two available configurations, in which one specie has vorticity and the other one has , only one is linearly stable, which agrees with the experimental results. However, it is found that in the unstable case the vortex is not destroyed by the instability, but may be transfered from one specie to the other or display complex spatiotemporal dynamics.
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