The bulk-corner correspondence of time-reversal symmetric insulators

Abstract The topology of insulators is usually revealed through the presence of gapless boundary modes: this is the so-called bulk-boundary correspondence. However, the many-body wavefunction of a crystalline insulator is endowed with additional topological properties that do not yield surface spect...

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Bibliographic Details
Main Authors: Sander Kooi, Guido van Miert, Carmine Ortix
Format: Article
Language:English
Published: Nature Publishing Group 2021-01-01
Series:npj Quantum Materials
Online Access:https://doi.org/10.1038/s41535-020-00300-7