Transverse spin polarization of a Rashba-Zeeman-coupled Fermi superfluid

被引：0

作者：

Iskin, M. ^{[1
]}

机构：

[1] Koc Univ, Dept Phys, Rumelifeneri Yolu, TR-34450 Istanbul, Turkey

来源：

PHYSICA B-CONDENSED MATTER | 2021年 / 615卷

关键词：

BCS-BEC crossover; Rashba spin-orbit coupling; Spin polarization; Bulk-boundary correspondence;

D O I：

10.1016/j.physb.2021.412992

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

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.

引用

页数：6

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