2011/06/30 by Wenbo Fu, Zhenhua Yu, Xiaoling Cui
Chemistry · Physics and Astronomy · #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Fermi Gamma-ray Space Telescope #Feshbach resonance #Molecule #Optics #Physics #Quantum #Quantum mechanics #Resonance (particle physics) #Scattering #Scattering length #Spectroscopy and Laser Applications #Strong Light-Matter Interactions #Transverse plane #Trap (plumbing) #Trapping #Ultracold atom #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.85.012703
published as Phys Rev A 85, 012703(2012) · 8 pages, 6 figures, published version
openalex publication_date 2012/01/12 · arxiv created 2012/01/16 · arxiv updated 2012/01/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the effective one-dimensional (1D) scattering of two distinguishable atoms confined individually by separatedtransverse harmonic traps. With equal trapping frequency for two s-wave interacting atoms, we find that by tuning the trap separations, the system can undergo double 1D scattering resonance, named as the separation-induced resonance (SIR), when the ratio between the confinement length and s-wave scattering length is within (0.791,1.46]. Near SIR, the scattering property shows unique dependence on the resonance position. The universality of a many-body system on scattering branch near SIR is demonstrated by studying the interaction effect of a localized impurity coupled with a Fermi sea of light atoms in a quasi-1D trap.