Lieb-Schultz-Mattis anomalies as obstructions to gauging (non-on-site) symmetries
We study 't Hooft anomalies of global symmetries in 1+1d lattice Hamiltonian systems. We consider anomalies in internal and lattice translation symmetries. We derive a microscopic formula for the "anomaly cocycle" using topological defects implementing twisted boundary conditions. The anomaly takes...
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| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
SciPost
2024-04-01
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| Schriftenreihe: | SciPost Physics |
| Online-Zugang: | https://scipost.org/SciPostPhys.16.4.098 |
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