“Not- A”, representation symmetry-protected topological, and Potts phases in an S3 -invariant chain
We analyze in depth an S 3 -invariant nearest-neighbor quantum chain in the region of a U ( 1 ) -invariant self-dual multicritical point. We find four distinct proximate gapped phases. One has three-state Potts order, corresponding to topological order in a parafermionic formulation. Another has “...
Main Authors: | O’Brien. E, Vernier, E, Fendley, P |
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Format: | Journal article |
Language: | English |
Published: |
American Physical Society
2020
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