Experimental study of the transport of coherent interacting matter-waves in a 1D random potential induced by laser speckle

By David Cl'ement, A. Varon, J. Retter, Laurent Sanchez-Palencia, A. Aspect, P. Bouyer. 2006

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We present a detailed analysis of the 1D expansion of a coherent interacting matterwave (a Bose–Einstein condensate (BEC)) in the presence of disorder. A 1D random potential is created via laser speckle patterns. It is carefully calibrated and the self-averaging properties of our experimental system are discussed. We observe the suppression of the transport of the BEC in the random potential. We discuss the scenario of disorder-induced trapping taking into account the radial extension in our experimental 3D BEC and we compare our experimental results with the theoretical predictions.

Subfields: Acoustics and Ultrasonics, Atomic and Molecular Physics, and Optics, Spectroscopy

View Paper: https://www.semanticscholar.org/paper/2edd032f2248bb49bc90bf19edf4f95d3c06f8d8