Different lattice entanglement cuts at a (2+1)d O(3) quantum critical point realize distinct Rényi-defect universality classes, and the "extraordinary" cut undergoes an order-disorder transition as the Rényi index n is varied around n≈3–4.
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Rényi entanglement entropy scaling at the honeycomb lattice Néel-VBS transition is largely consistent with SO(5) CFT predictions for corner coefficients, with a notable period-3 oscillation anomaly in hexagonal subsystems.
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Criticality on R\'enyi defects at (2+1)$d$ O(3) quantum critical points
Different lattice entanglement cuts at a (2+1)d O(3) quantum critical point realize distinct Rényi-defect universality classes, and the "extraordinary" cut undergoes an order-disorder transition as the Rényi index n is varied around n≈3–4.
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Critical SO(5) scaling of entanglement entropy at honeycomb lattice deconfined criticality
Rényi entanglement entropy scaling at the honeycomb lattice Néel-VBS transition is largely consistent with SO(5) CFT predictions for corner coefficients, with a notable period-3 oscillation anomaly in hexagonal subsystems.