Effective-range description of a Bose gas under strong one- or two-dimensional confinement

Details Effective-range description of a Bose gas under strong one- or two-dimensional confinement Effective-range description of a Bose gas under strong one- or two-dimensional confinement

2006-07-14

arxiv.org/abs/physics/0607140v2

New J. Phys. 9 No 1 (January 2007) 19

Physics

Atomic Physics

6 pages, 3 figures

Scientific paper

10.1088/1367-2630/9/1/019

We point out that theories describing s-wave collisions of bosonic atoms confined in one- or two-dimensional geometries can be extended to much tighter confinements than previously thought. This is achieved by replacing the scattering length by an energy-dependent scattering length which was already introduced for the calculation of energy levels under 3D confinement. This replacement accurately predicts the position of confinement-induced resonances in strongly confined geometries.

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