Supersymmetric Boundaries of One-Dimensional Phases of Fermions beyond Symmetry-Protected Topological States

It has recently been demonstrated that protected supersymmetry emerges on the boundaries of one-dimensional intrinsically fermionic symmetry protected trivial (SPT) phases. Here we investigate the boundary supersymmetry of one-dimensional fermionic phases beyond SPT phases. Using the connection betw...

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Bibliographic Details
Published in:Physical review letters 2021-07, Vol.127 (2), p.026402-026402, Article 026402
Main Authors: Turzillo, Alex, You, Minyoung
Format: Article
Language:English
Subjects:
Boundaries
Fermions
Phases
Supersymmetry
Symmetry
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Summary:It has recently been demonstrated that protected supersymmetry emerges on the boundaries of one-dimensional intrinsically fermionic symmetry protected trivial (SPT) phases. Here we investigate the boundary supersymmetry of one-dimensional fermionic phases beyond SPT phases. Using the connection between Majorana edge modes and real supercharges, we compute, in terms of the bulk phase invariants, the number of protected boundary supercharges.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.127.026402