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Effect of optical disorder and single defects on the expansion of a Bose-Einstein condensate in a one-dimensional waveguide

C. Fort·L. Fallani·V. Guarrera·J. Lye·M. Modugno·D. S. Wiersma·M. Inguscio
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Abstract

We investigate the one-dimensional expansion of a Bose-Einstein condensate in an optical guide in the presence of a random potential created with optical speckles. With the speckle the expansion of the condensate is strongly inhibited. A detailed investigation has been carried out varying the experimental conditions and checking the expansion when a single optical defect is present. The experimental results are in good agreement with numerical calculations based on the Gross-Pitaevskii equation.

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C. Fort, L. Fallani, V. Guarrera, J. Lye, M. Modugno, D. S. Wiersma, M. Inguscio. 2005-07-06. Effect of optical disorder and single defects on the expansion of a Bose-Einstein condensate in a one-dimensional waveguide. https://doi.org/10.1103/physrevlett.95.170410

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