Observation of Reduced Three-Body Recombination in a Correlated 1D Degenerate Bose Gas
B. Laburthe-TolraNational Institute of Standards and Technology, Gaithersburg, Maryland 20899, USAKoji OharaNational Institute of Standards and Technology, Gaithersburg, Maryland 20899, USAJ. H. HuckansNational Institute of Standards and Technology, Gaithersburg, Maryland 20899, USAWilliam D. PhillipsNational Institute of Standards and Technology, Gaithersburg, Maryland 20899, USAS. L. RolstonNational Institute of Standards and Technology, Gaithersburg, Maryland 20899, USAJ. V. PortoNational Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
2004en
ABI
Annotatsiya
We investigate the correlation properties of a one-dimensional interacting Bose gas by loading a magnetically trapped 87Rb Bose-Einstein condensate (BEC) 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 7 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.
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