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Formation of a Matter-Wave Bright Soliton

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Science  17 May 2002:
Vol. 296, Issue 5571, pp. 1290-1293
DOI: 10.1126/science.1071021

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Abstract

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.

  • * To whom correspondence should be addressed. E-mail: salomon{at}lkb.ens.fr

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