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Free expansion of attractive and repulsive Bose-Einstein condensed vortex states | | Sadhan K. Adhikari
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11 Sep 2001 | | Journal: | Phys. Rev. A 65 (2002) 033616 (1-6) | | Subject: | Soft Condensed Matter | cond-mat.soft | | Abstract: | 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 which 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. | | Source: | arXiv, cond-mat/0109199 | | Services: | Forum | Review | PDF | Favorites | |
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