Resonant Scattering of Ultracold Atoms in Low Dimensions

Details Resonant Scattering of Ultracold Atoms in Low Dimensions Resonant Scattering of Ultracold Atoms in Low Dimensions

2007-06-06

arxiv.org/abs/0706.0834v3

Physical Review Letters 100 (2008) 170404

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevLett.100.170404

Low energy scattering amplitudes for two atoms in one- and two-dimensional atomic wave guides are derived for short range isotropic and resonant interactions in high partial wave channels. Taking into account the finite width of the resonance which was neglected in previous works is shown to have important implications in the properties of the confinement induced resonances. For spin polarized fermions in quasi-1D wave guides it imposes a strong constraint on the atomic density for achieving the Fermi Tonks Girardeau gas. For a planar wave guide, the charateristics of the 2D induced scattering resonances in $p$- and d-wave are determined as a function of the 3D scattering parameters and of the wave guide frequency.

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