Brand JToikka LZülicke U2023-11-292024-07-252023-11-292024-07-252018-08-01Brand J, Toikka L, Zülicke U. (2018). Accurate projective two-band description of topological superfluidity in spin-orbit-coupled Fermi gases. SciPost Physics. 5. 2.2542-4653https://mro.massey.ac.nz/handle/10179/70453The 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 Majorana 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.(c) The Author/s 2018CC BY 4.0https://creativecommons.org/licenses/by/4.0/Journal article10.21468/SciPostPhys.5.2.0162542-4653journal-articlehttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000443745100003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fefARTN 16