Fragility of spectral flow for topological phases in non-Wigner-Dyson classes

URN to cite this document:: urn:nbn:de:bvb:355-epub-547482
DOI to cite this document:: 10.5283/epub.54748

Altland, Alexander ; Brouwer, Piet W ; Dieplinger, Johannes

; Foster, Matthew S ; Moreno-Gonzalez, Mateo ; Trifunovic, Luka

License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 28 Sep 2023 16:45

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Abstract

Topological insulators and superconductors support extended surface states protected against the otherwise localizing effects of static disorder. Specifically, in the Wigner-Dyson insulators belonging to the symmetry classes A, AI, and AII, a band of extended surface states is continuously connected to a likewise extended set of bulk states forming a ``bridge'' between different surfaces via the ...