Phys. Rev. A 65, 033616 (2002) [6 pages]Free expansion of attractive and repulsive Bose-Einstein condensed vortex states
Sadhan K. Adhikari Received 11 September 2001; published 26 February 2002 Free expansion of attractive and repulsive Bose-Einstein condensed vortex states formed in an axially symmetric trap is investigated using the numerical solution of the time-dependent Gross-Pitaevskii equation. In a repulsive condensate the vortex-core radius is much smaller than the radial root-mean-square (rms) radius, which makes the experimental observation of the vortex core difficult. The opposite is found to be true in an attractive condensate that makes it a better candidate for experimental observation. Also, in all cases the ratio of vortex-core radius to radial rms radius increases as the angular momentum of the vortex increases. This makes the vortex states with higher angular momenta more suitable for experimental confirmation. ©2002 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevA.65.033616 [ Abstract | Previous article | Next article | Issue 3 ] |
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