"Localization of ultra-cold bosons in a 3D laser speckle disordered potential."

  • Date: May 22, 2012
  • Time: 11:30 AM - 11:30 AM (Local Time Germany)
  • Speaker: Prof. Dr. Alain Aspect, Laboratoire Charles Fabry, Institut d'Optique, Palaiseau
  • Room: Herbert Walther Lecture Hall
  • Host: MPQ
"We have observed 3D localization of ultra-cold atoms of a Bose Einstein Condensate, suspended against gravity, and released in a 3D optical disordered potential with short correlation lengths in all directions. Fluorescence imaging of the expanding cloud yields density profiles composed of a steady localized part and a diffusive part. A phenomenological analysis of the data allows us to determine the localized fraction and the diffusion coefficients of the diffusing part. I will present and discuss these results, in the context of Anderson localization."
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