Proposes relative-entropy-based measures to diagnose chirality in mixed-state topological phases after showing pure-state diagnostics are unreliable.
Fan, From entanglement generated dynamics to the gravitational anomaly and chiral central charge, Physi- cal Review Letters129, 10.1103/physrevlett.129.260403 (2022)
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Measures of Chirality in Mixed-State Topological Phases
Proposes relative-entropy-based measures to diagnose chirality in mixed-state topological phases after showing pure-state diagnostics are unreliable.