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math-ph2024
Anyonic symmetry fractionalization in SET phases
Jose Garre Rubio, Yoshiko Ogata
We consider the anyonic spin systems with a global symmetry, the so-called symmetry enriched topological (SET) phases. We introduce the phase characterizing the symmetry fractional…
quant-ph2024
Classifying symmetric and symmetry-broken spin chain phases with anomalous group actions
Jose Garre Rubio, Andras Molnar, Yoshiko Ogata
We consider the classification problem of quantum spin chains invariant under local decomposable group actions, covering matrix product unitaries (MPUs), using an operator algebrai…