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

被引:320
作者
Tolra, BL [1 ]
O'Hara, KM
Huckans, JH
Phillips, WD
Rolston, SL
Porto, JV
机构
[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA
[2] Univ Paris 13, Phys Lasers Lab, UMR 7538, Paris, France
[3] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
基金
美国国家航空航天局;
关键词
D O I
10.1103/PhysRevLett.92.190401
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We investigate the correlation properties of a one-dimensional interacting Bose gas by loading a magnetically trapped Rb-87 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.
引用
收藏
页码:190401 / 1
页数:4
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