Bulk-boundary-defect correspondence at disclinations in rotation-symmetric topological insulators and superconductors

We study a link between the ground-state topology and the topology of the lattice via the presence of anomalous states at disclinations -- topological lattice defects that violate a rotation symmetry only locally. We first show the existence of anomalous disclination states, such as Majorana zero...

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Bibliographic Details
Main Author: Max Geier, Ion Cosma Fulga, Alexander Lau
Format: Article
Language:English
Published: SciPost 2021-04-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.10.4.092