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Mean-field model of jet formation in a collapsing Bose-Einstein condensate | | Sadhan K. Adhikari
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10 Feb 2004 | | Journal: | J. Phys. B: At. Mol. Opt. Phys. 37 (2004) 1185-1194 | | Subject: | Soft Condensed Matter; Other | cond-mat.soft cond-mat.other | | 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. | | Source: | arXiv, cond-mat/0402281 | | Services: | Forum | Review | PDF | Favorites | |
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