Physical Review A

Spin-orbit-coupled Bose gases with nonlocal Rydberg interactions held under a toroidal trap

Xiao-Fei Zhang, Lin Wen, Lin-Xue Wang, Guangjian Chen, Ren‐Bing Tan, Hiroki Saito

Published Mar 14, 2022• 24 citations

Abstract

We consider a spin-orbit-coupled Bose-Einstein condensate with nonlocal Rydberg interactions confined in a toroidal trap. Our results show that the interplay among nonlocal Rydberg interactions, contact interactions, spin-orbit coupling, and the external toroidal trap can give rise to a rich variety of ground-state phases, such as lump necklace, chiral supersolid, standing- and plane-wave supersolid, and so on. Furthermore, we clarify the different breaking of symmetry induced by system parameters. Finally, the limiting case of a quasi-one-dimensional ring has also been investigated, and our analytical results agree well with the Gross-Pitaevskii numerical simulations. We also give an experimental protocol to observe these states in future experiments.

DOI: 10.1103/physreva.105.033306

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