In the X-Q model the Néel-VBS transition is strongly first-order for N>2 because the X term cannot generate enough U(1) fluctuations of the dimer pattern.
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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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SU($N$) Quantum Spin Model with Weak and Strong First-Order N\'eel to Valence-Bond Solid Transitions
In the X-Q model the Néel-VBS transition is strongly first-order for N>2 because the X term cannot generate enough U(1) fluctuations of the dimer pattern.
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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.