Dynamics of a Bose-Einstein-condensate bright soliton in an expulsive potential

Year: 2004

Authors: Salasnich L.

Autors Affiliation: Univ Milan, Ist Nazl Fis Mat, Unita Milano, Dipartimento Fis, I-20133 Milan, Italy

Abstract: We theoretically investigate the dynamics of a matter-wave soliton created in a harmonic potential, which is attractive in the transverse direction but expulsive in the longitudinal direction. This Bose-Einstein-condensate (BEC) bright soliton made of Li-7 atoms has been observed in a recent experiment [Khaykovich , Science 296, 1290 (2002)]. We show that the nonpolynomial Schrodinger equation, an effective one-dimensional equation we derived from the three-dimensional Gross-Pitaevskii equation, is able to reproduce the main experimental features of this BEC soliton in an expulsive potential.

Journal/Review: PHYSICAL REVIEW A

Volume: 70 (5)      Pages from: 053617  to: 053617

KeyWords: ultracold atoms
DOI: 10.1103/PhysRevA.70.053617

Citations: 47
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