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Dynamics of collapsing and exploding Bose-Einstein condensed vortex state

Sadhan K. Adhikari
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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.

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Sadhan K. Adhikari. 2002-08-01. Dynamics of collapsing and exploding Bose-Einstein condensed vortex state. https://doi.org/10.1103/physreva.66.043601

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