Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/128501
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Type: Journal article
Title: Edge-following topological states
Author: Thiang, G.
Citation: Journal of Geometry and Physics, 2020; 156:1-17
Publisher: Elsevier
Issue Date: 2020
ISSN: 0393-0440
1879-1662
Statement of
Responsibility: 
Guo Chuan Thiang
Abstract: We prove that Chern insulators have topologically protected edge states which not only propagate unidirectionally along a straight line boundary, but also swerve around arbitrary-angled corners and geometric imperfections of the material boundary. This is a physical manifestation of the index theory of certain semigroup operator algebras.
Keywords: Topological insulators; toeplitz algebras; K-theory; bulk-edge correspondence
Rights: © 2020 Elsevier B.V. All rights reserved.
DOI: 10.1016/j.geomphys.2020.103796
Grant ID: http://purl.org/au-research/grants/arc/DE170100149
Published version: http://dx.doi.org/10.1016/j.geomphys.2020.103796
Appears in Collections:Aurora harvest 8
Mathematical Sciences publications

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