期刊
SCIENCE
卷 296, 期 5571, 页码 1290-1293出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1071021
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We report the production of matter-wave solitons in an ultracold lithium-7 gas. The effective interaction between atoms In a Bose-Einstein condensate is tuned with a Feshbach resonance from repulsive to attractive before release in a one-dimensional optical waveguide. Propagation of the soliton without dispersion over a macroscopic distance of 1.1 millimeter is observed. A simple theoretical model explains the stability region of the soliton. These matter-wave solitons open possibilities for future applications in coherent atom optics, atom interferometry, and atom transport.
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