Journal
PHYSICAL REVIEW A
Volume 86, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.86.033601
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Funding
- China Postdoctoral Science Foundation [2012M510187]
- NSFC [11004224, 11204355]
- NFRP-China [2011CB921601, 2011CB921502]
- ARC [DP0984637, DP0984522]
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Using a two-channel model, we investigate theoretically the binding energy of confinement-induced Feshbach molecules in two-and one-dimensional ultracold atomic systems near a Feshbach resonance. We show that the two-channel prediction will evidently deviate from the simple single-channel theory as the width of Feshbach resonances decreases. For the one-dimensional system, we perform a full two-channel calculation, with the inclusion of bare interatomic interactions in the open channel. Away from the resonance, we find a sizable correction to the binding energy, if we neglect the bare interatomic interactions as in the previous work [D. B. M. Dickerscheid and H. T. C. Stoof, Phys. Rev. A 72, 053625 (2005)]. We compare our theoretical results with the existing experimental data and present predictions for narrow Feshbach resonances that could be tested in future experiments.
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