Topology of critical chiral phases: Multiband insulators and superconductors
Journal article, 2021

Recent works have proved the existence of symmetry-protected edge states in certain one-dimensional topological band insulators and superconductors at the gap-closing points which define quantum phase transitions between two topologically nontrivial phases. We show how this picture generalizes to multiband critical models belonging to any of the chiral symmetry classes AIII, BDI, or CII of noninteracting fermions in one dimension.


Oleksandr Balabanov

University of Gothenburg

Stockholm University

Henrik Johannesson

University of Gothenburg

Daniel Erkensten

Chalmers, Physics, Condensed Matter and Materials Theory

Physical Review Research

26431564 (ISSN)

Vol. 3 4 A56

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Other Physics Topics

Condensed Matter Physics



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