Publication: Topological two-body bands in a multiband Hubbard model
dc.contributor.department | Department of Physics | |
dc.contributor.kuauthor | Işkın, Menderes | |
dc.contributor.schoolcollegeinstitute | College of Sciences | |
dc.date.accessioned | 2025-01-19T10:31:47Z | |
dc.date.issued | 2023 | |
dc.description.abstract | In a multiband Hubbard model the self-consistency relations for the two-body bound-state bands are in the form of a nonlinear eigenvalue problem. Assuming that the resultant eigenvectors form an orthonormal set, e.g., in the strong-binding regime, here we reformulate their Berry curvatures and the associated Chern numbers. As an illustration we solve the two-body problem in a Haldane-Hubbard model with attractive on-site interactions and analyze its topological phase diagrams from weak to strong couplings, i.e., by keeping track of the gap closings in between the low-lying two-body bands. The resultant Chern numbers are consistent with the lobe structure of the phase diagrams in the strong-coupling regime. | |
dc.description.indexedby | WOS | |
dc.description.indexedby | Scopus | |
dc.description.issue | 5 | |
dc.description.openaccess | Green Submitted | |
dc.description.publisherscope | International | |
dc.description.sponsoredbyTubitakEu | N/A | |
dc.description.volume | 107 | |
dc.identifier.doi | 10.1103/PhysRevA.107.053323 | |
dc.identifier.eissn | 2469-9934 | |
dc.identifier.issn | 2469-9926 | |
dc.identifier.quartile | Q2 | |
dc.identifier.scopus | 2-s2.0-85161201562 | |
dc.identifier.uri | https://doi.org/10.1103/PhysRevA.107.053323 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14288/26288 | |
dc.identifier.wos | 1010708900002 | |
dc.keywords | Optics | |
dc.keywords | Physics, Atomic, Molecular and Chemical | |
dc.language.iso | eng | |
dc.publisher | Amer Physical Soc | |
dc.relation.ispartof | Physical Review A | |
dc.subject | Physics | |
dc.title | Topological two-body bands in a multiband Hubbard model | |
dc.type | Journal Article | |
dspace.entity.type | Publication | |
local.contributor.kuauthor | Işkın, Menderes | |
local.publication.orgunit1 | College of Sciences | |
local.publication.orgunit2 | Department of Physics | |
relation.isOrgUnitOfPublication | c43d21f0-ae67-4f18-a338-bcaedd4b72a4 | |
relation.isOrgUnitOfPublication.latestForDiscovery | c43d21f0-ae67-4f18-a338-bcaedd4b72a4 | |
relation.isParentOrgUnitOfPublication | af0395b0-7219-4165-a909-7016fa30932d | |
relation.isParentOrgUnitOfPublication.latestForDiscovery | af0395b0-7219-4165-a909-7016fa30932d |
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