1. The confinement induced resonance in spin-orbit coupled cold atoms with Raman coupling.
- Author
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Yi-Cai Zhang, Shu-Wei Song, and Wu-Ming Liu
- Subjects
- *
SPIN-orbit interactions , *ATOMS , *SCATTERING length (Nuclear physics) , *GAUGE field theory , *ATOMIC physics - Abstract
The confinement induced resonance provides an indispensable tool for the realization of the low-dimensional strongly interacting quantum system. Here, 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 through increasing Raman coupling strength in experiments. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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