Soliton localization in Bose-Einstein condensates with time-dependent harmonic potential and scattering length

Details Soliton localization in Bose-Einstein condensates with time-dependent harmonic potential and scattering length Soliton localization in Bose-Einstein condensates with time-dependent harmonic potential and scattering length

2009-05-14

arxiv.org/abs/0905.2241v1

Physics

Condensed Matter

Quantum Gases

19 pages, 11 figures, accepted for publication in J.Phys.A

Scientific paper

We derive exact solitonic solutions of a class of Gross-Pitaevskii equations with time-dependent harmonic trapping potential and interatomic interaction. We find families of exact single-solitonic, multi-solitonic, and solitary wave solutions. We show that, with the special case of an oscillating trapping potential and interatomic interaction, a soliton can be localized indefinitely at an arbitrary position. The localization is shown to be experimentally possible for sufficiently long time even with only an oscillating trapping potential and a constant interatomic interaction.

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