Spin exchange-induced spin-orbit coupling in a superuid mixture
Abstract
We investigate the ground-state properties of a dual-species spin-1/2 Bose-Einstein condensate. One of the species is subjected to a pair of Raman laser beams that induces spin-orbit (SO) coupling, whereas the other species is not coupled to the Raman laser. In certain limits, analytical results can be obtained. It is clearly shown that, through the inter-species spin-exchange interaction, the second species also exhibits SO coupling. This mixture system displays a very rich phase diagram, with many of the phases not present in an SO coupled single-species condensate. Our work provides a new way of creating SO coupling in atomic quantum gases, and opens up a new avenue of research in SO coupled superfluid mixtures. From a practical point of view, the spin exchange-induced SO coupling may overcome the heating issue for certain atomic species when subjected to the Raman beams.
Cite
@article{arxiv.1803.03387,
title = {Spin exchange-induced spin-orbit coupling in a superuid mixture},
author = {Li Chen and Chuanzhou Zhu and Yunbo Zhang and Han Pu},
journal= {arXiv preprint arXiv:1803.03387},
year = {2018}
}
Comments
6 pages, 3 figures, accepted for publication as a Rapid Commun. in PRA