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Wilson-loop characterization of inversion-symmetric topological insulators

Author(s): Alexandradinata, A; Dai, Xi; Bernevig, Bogdan A

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dc.contributor.authorAlexandradinata, A-
dc.contributor.authorDai, Xi-
dc.contributor.authorBernevig, Bogdan A-
dc.date.accessioned2020-10-30T19:20:37Z-
dc.date.available2020-10-30T19:20:37Z-
dc.date.issued2014-04-11en_US
dc.identifier.citationAlexandradinata, A, Dai, Xi, Bernevig, B Andrei. (2014). Wilson-loop characterization of inversion-symmetric topological insulators. PHYSICAL REVIEW B, 89 (10.1103/PhysRevB.89.155114en_US
dc.identifier.issn2469-9950-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr19j86-
dc.description.abstractThe ground state of translationally invariant insulators comprises bands which can assume topologically distinct structures. There are few known examples where this distinction is enforced by a point-group symmetry alone. In this paper we show that 1D and 2D insulators with the simplest point-group symmetry, inversion, have a Z(>=) classification. In 2D, we identify a relative winding number that is solely protected by inversion symmetry. By analysis of Berry phases, we show that this invariant has similarities with the first Chern class (of time-reversal breaking insulators), but is more closely analogous to the Z(2) invariant (of time-reversal invariant insulators). Implications of our work are discussed in holonomy, the geometric-phase theory of polarization, the theory of maximally localized Wannier functions, and in the entanglement spectrum.en_US
dc.language.isoen_USen_US
dc.relation.ispartofPHYSICAL REVIEW Ben_US
dc.rightsFinal published version. Article is made available in OAR by the publisher's permission or policy.en_US
dc.titleWilson-loop characterization of inversion-symmetric topological insulatorsen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1103/PhysRevB.89.155114-
dc.identifier.eissn2469-9969-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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