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dc.contributor.authorIrsigler, Bernhard
dc.contributor.authorZheng, Jun-Hui
dc.contributor.authorGrusdt, Fabian
dc.contributor.authorHofstetter, Walter
dc.date.accessioned2023-01-12T13:00:06Z
dc.date.available2023-01-12T13:00:06Z
dc.date.created2021-01-19T09:40:42Z
dc.date.issued2020
dc.identifier.citationPhysical Review Research (PRResearch). 2020, 2 (1), .
dc.identifier.issn2643-1564
dc.identifier.urihttps://hdl.handle.net/11250/3043075
dc.description.abstractWe introduce three numerical methods for characterizing the topological phases of three-dimensional multiband Hubbard models based on twisted boundary conditions, Wilson loops, as well as the local topological marker. We focus on the half-filled, three-dimensional time-reversal-invariant Hofstadter model with finite spin-orbit coupling. Besides the weak and strong topological insulator phases we find a nodal line semimetal in the parameter regime between the two three-dimensional topological insulator phases. Using dynamical mean-field theory combined with the topological Hamiltonian approach we find stabilization of these three-dimensional topological states due to the Hubbard interaction. We study surface states which exhibit an asymmetry between left and right surfaces originating from the broken parity symmetry of the system. Our results set the stage for further research on inhomogeneous three-dimensional topological systems, proximity effects, topological Mott insulators, nontrivially linked nodal line semimetals, and circuit-based quantum simulators.
dc.language.isoeng
dc.rightsNavngivelse 4.0 Internasjonal
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no
dc.titleZ2 characterization for three-dimensional multiband Hubbard models
dc.title.alternativeZ2 characterization for three-dimensional multiband Hubbard models
dc.typePeer reviewed
dc.typeJournal article
dc.description.versionpublishedVersion
dc.source.pagenumber7
dc.source.volume2
dc.source.journalPhysical Review Research (PRResearch)
dc.source.issue1
dc.identifier.doi10.1103/PhysRevResearch.2.013299
dc.identifier.cristin1873930
dc.relation.projectNorges forskningsråd: 262633
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal