Angular topological superfluid and topological vortex in an ultracold Fermi gas

We show that pairing in an ultracold Fermi gas under spin-orbital-angular-momentum coupling (SOAMC) can acquire topological characters encoded in the quantized angular degrees of freedom. The resulting topological superfluid is the angular analog of its counterpart in a one-dimensional Fermi gas wit...

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Bibliographic Details
Main Authors: Ke-Ji Chen, Fan Wu, Lianyi He, Wei Yi
Format: Article
Language:English
Published: American Physical Society 2022-07-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.033023