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      Experimental study of the BEC-BCS crossover region in lithium 6.

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          Abstract

          We report Bose-Einstein condensation of weakly bound 6Li2 molecules in a crossed optical trap near a Feshbach resonance. We measure a molecule-molecule scattering length of 170(+100)(-60) nm at 770 G, in good agreement with theory. We study the 2D expansion of the cloud and show deviation from hydrodynamic behavior in the BEC-BCS crossover region.

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          Author and article information

          Journal
          Phys Rev Lett
          Physical review letters
          American Physical Society (APS)
          0031-9007
          0031-9007
          Jul 30 2004
          : 93
          : 5
          Affiliations
          [1 ] Laboratoire Kastler-Brossel, ENS, 24 rue Lhomond, 75005 Paris.
          Article
          10.1103/PhysRevLett.93.050401
          15323676
          bd8d07e6-9c58-44af-b82e-dcc8decb8cec
          History

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