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Mean-field model of jet formation in a collapsing Bose-Einstein condensate

Sadhan K. Adhikari
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Abstract

We perform a systematic numerical study, based on the time-dependent Gross-Pitaevskii equation, of jet formation in collapsing and exploding Bose-Einstein condensates as in the experiment by Donley et al [2001 Nature 412 295]. In the actual experiment, via a Feshbach resonance, the scattering length of atomic interaction was suddenly changed from positive to negative on a pre-formed condensate. Consequently, the condensate collapsed and ejected atoms via explosion. On a disruption of collapse by suddenly changing the scattering length to zero a radial jet of atoms was formed in the experiment. We present a satisfactory account of jet formation under the experimental conditions as well as make predictions beyond experimental conditions which can be verified in future experiments.

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Sadhan K. Adhikari. 2004-02-10. Mean-field model of jet formation in a collapsing Bose-Einstein condensate. https://doi.org/10.1088/0953-4075%2F37%2F6%2F004

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