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Dynamics of collapsing and exploding Bose-Einstein condensed vortex state | | Sadhan K. Adhikari
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30 Apr 2002 | | Journal: | Phys.Rev.A 66 (2002) 043601 (1-7) | | Subject: | Soft Condensed Matter | cond-mat.soft | | Abstract: | Using the time-dependent mean-field Gross-Pitaevskii equation we study the dynamics of small repulsive Bose-Einstein condensed vortex states of ^{85}Rb atoms in a cylindrical trap with low angular momentum hbar L per atom (L <= 6), when the atomic interaction is suddenly turned attractive by manipulating the external magnetic field near a Feshbach resonance. Consequently, the condensate collapses and ejects atoms via explosion and a remnant condensate with a smaller number of atoms emerges that survives for a long time. Detail of this collapse and explosion is compared critically with a similar experiment performed with zero angular momentum (L=0). Suggestion for future experiment with vortex state is made. | | Source: | arXiv, cond-mat/0204638 | | Services: | Forum | Review | PDF | Favorites | |
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