1. The confinement induced resonance in spin-orbit coupled cold atoms with Raman coupling
- Author
-
Yi-Cai Zhang, Wu-Ming Liu, and Shu-Wei Song
- Subjects
Physics ,Length scale ,Multidisciplinary ,FOS: Physical sciences ,Resonance ,Scattering length ,Bioinformatics ,Molecular physics ,Article ,Coupling (physics) ,symbols.namesake ,Quantum Gases (cond-mat.quant-gas) ,Bound state ,Quantum system ,symbols ,Physics::Atomic Physics ,Condensed Matter - Quantum Gases ,Spin (physics) ,Raman spectroscopy - Abstract
We investigate the confinement induced resonance in spin-orbit coupled cold atoms with Raman coupling. We find that the quasi-bound levels induced by the spin-orbit coupling and Raman coupling result in the Feshbach-type resonances. For sufficiently large Raman coupling, the bound states in one dimension exist only for sufficiently strong attractive interaction. Furthermore, the bound states in quasi-one dimension exist only for sufficient large ratio of the length scale of confinement to three dimensional s-wave scattering length. The Raman coupling substantially changes the confinement-induced resonance position. We give a proposal to realize confinement induced resonance by increasing the Raman coupling strength in experiments., 5 pages, 4 figures
- Published
- 2014
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