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복잡계 이론물리 연구단
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Accurate projective two-band description of topological superfluidity in spin-orbit-coupled Fermi gases

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Title
Accurate projective two-band description of topological superfluidity in spin-orbit-coupled Fermi gases
Author(s)
Joachim Brand; Lauri Toikka; Ulrich Zülicke
Publication Date
2018-08
Journal
SCIPOST PHYSICS, v.5, no., pp.016 -
Publisher
SCIPOST FOUNDATION
Abstract
The interplay of spin-orbit coupling and Zeeman splitting in ultracold Fermi gases gives rise to a topological superfluid phase in two spatial dimensions that can host exotic Majo- rana excitations. Theoretical models have so far been based on a four-band Bogoliubov- de Gennes formalism for the combined spin-1/2 and particle-hole degrees of freedom. Here we present a simpler, yet accurate, two-band description based on a well-controlled projection technique that provides a new platform for exploring analogies with chiral p- wave superfluidity and detailed future studies of spatially non-uniform situations.Copyright J. Brand et al.
URI
https://pr.ibs.re.kr/handle/8788114/4937
ISSN
2542-4653
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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