Publication: Transverse spin polarization of a Rashba-Zeeman-coupled Fermi superfluid
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KU-Authors
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Embargo Status
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Abstract
We apply the Bogoliubov-de Gennes theory to a superfluid Fermi gas that is confined to a disc, and analyze its transverse spin polarization that is produced by the simultaneous presence of an out-of-plane Zeeman field and an in-plane Rashba spin-orbit coupling. This is a finite-size effect whose physical origin is directly associated with the equilibrium mass-current density. Our numerical findings for the ground state suggest a bulk-boundary correspondence between characteristic features of the edge-bound transverse polarization and the changes in the momentum-space topology of the bulk.
Source
Publisher
Elsevier
Subject
Physics, Condensed matter
Citation
Has Part
Source
Physica B-Condensed Matter
Book Series Title
Edition
DOI
10.1016/j.physb.2021.412992