arXiv:cond-mat/0507144 · Physical Review Letters

Effect of Optical Disorder and Single Defects on the Expansion of a Bose-Einstein Condensate in a One-Dimensional Waveguide

C. Fort, L. Fallani, Vera Guarrera, Jessica Lye, Michele Modugno, D.S. Wiersma, M. Inguscio

Published Oct 21, 2005• 270 citations

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.

DOI: 10.1103/physrevlett.95.170410

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