Observation of reduced three-body recombination in a correlated 1D degenerate Bose gas.
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.
Laburthe Tolra
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B
National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
O'Hara
K M
KM
Huckans
J H
JH
Phillips
W D
WD
Rolston
S L
SL
Porto
J V
JV