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Physical Review Letters

Observation of reduced three-body recombination in a correlated 1D Bose gase

B. Laburthe-Tolra, Kenneth M. O’Hara, J. H. Huckans, William D. Phillips, S. L. Rolston, J. V. Porto

Published Jan 1, 2004• 1 citation
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We investigate correlation properties of a one-dimensional interacting Bose gas by loading a magnetically trapped 87-Rb Bose-Einstein condensate into a deep two-dimensional optical lattice. We measure the three-body recombination rate for both the BEC in the magnetic trap and the BEC loaded into the optical lattice. The recombination rate coefficient is a factor of seven smaller in the lattice, which we interpret as a reduction in the local three-body correlation function in the 1D case. This is a signature of correlation intermediate between that of the uncorrelated phase coherent 1D mean-field regime and the strongly correlated Tonks-Girardeau regime.