Antiunitary symmetry protected higher-order topological phases
Higher-order topological (HOT) phases feature boundary (such as corner and hinge) modes of codimension d_{c}>1. We here identify an antiunitary operator that ensures the spectral symmetry of a two-dimensional HOT insulator and the existence of cornered localized states (d_{c}=2) at precise zero e...
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| Format: | Article |
| Language: | English |
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American Physical Society
2019-12-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.1.032048 |