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

Journal Article · Sun Oct 31 23:00:00 EST 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.053617· OSTI ID:20646265

Salasnich, Luca ^[1]

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1. Istituto Nazionale per la Fisica della Materia, Unita di Milano, Dipartimento di Fisica, Universita di Milano, Via Celoria 16, 20133 Milan (Italy)

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 {sup 7}Li atoms has been observed in a recent experiment [Khaykovich et al., Science 296, 1290 (2002)]. We show that the nonpolynomial Schroedinger 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.

• OSTI ID: 20646265
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
HARMONIC POTENTIAL
LITHIUM
LITHIUM 7
MATTER
ONE-DIMENSIONAL CALCULATIONS
SCHROEDINGER EQUATION
SOLITONS
THREE-DIMENSIONAL CALCULATIONS