Physics – Condensed Matter
Scientific paper
2002-05-17
Science, 296, 1290-1293 (2002)
Physics
Condensed Matter
11 pages, 5 figures
Scientific paper
10.1126/science.1071021
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 mm is observed. A simple theoretical model explains the stability region of the soliton. These matter-wave solitons open fascinating possibilities for future applications in coherent atom optics, atom interferometry and atom transport.
Bourdel Thomas
Carr Lincoln D.
Castin Yvan
Cubizolles Julien
Ferrari Gabriele
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