2014/01/31 by Xiaoling Cui
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum many-body systems #Strong Light-Matter Interactions #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.90.022705
published as Phys. Rev. A 90, 022705 (2014) · 9 pages, 5 figures
openalex publication_date 2014/08/11 · arxiv created 2014/08/30 · arxiv updated 2014/09/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
So far, the interaction of ultracold atoms can only be tuned within one particular scattering channel near a resonance, where the spinor structure of atomic isotopes is destroyed due to the typically large magnetic field. In this work, we propose a scheme to realize multichannel scattering resonance (MCSR) of ultracold bosons in one-dimension while still keeping their spinor structure. The MCSR refers to a simultaneous scattering resonance among all different scattering channels, including those breaking SU(2) and SO(2) spin-rotation symmetries. Essential ingredients for MCSR include the three-dimensional interactions, the confinement potential, and a spin-flipping field. Near MCSR a many-body spinor system exhibits exotic spin-density distributions and pair correlations, which are significantly different from those near a single-channel resonance.