Relative anomalies in (2+1)D symmetry enriched topological states
Certain patterns of symmetry fractionalization in topologically ordered phases of matter are anomalous, in the sense that they can only occur at the surface of a higher dimensional symmetry-protected topological (SPT) state. An important question is to determine how to compute this anomaly, which...
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| Format: | Article |
| Language: | English |
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SciPost
2020-02-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.8.2.028 |