Formation of a Matter-Wave Bright Soliton
Lev KhaykovichÉcole Normale Supérieure - PSLFlorian SchreckLaboratoire Kastler Brossel, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, FranceG. FerrariLaboratoire Kastler Brossel, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, FranceThomas BourdelÉcole Normale Supérieure - PSLJ. CubizollesÉcole Normale Supérieure - PSLLincoln D. CarrLaboratoire Kastler Brossel, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, FranceYvan CastinLaboratoire Kastler Brossel, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, FranceC. SalomonÉcole Normale Supérieure - PSL
2002en
ABI
Annotatsiya
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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