most citedEntanglement entropy for a type of scale-invariant states in two spatial dimensions and beyond: universal finite-size scaling

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quant-ph2025

Characterizing phase transitions and criticality in non-Hermitian extensions of the XY model

D. C. Liu, Murray T. Batchelor

In this work we study non-Hermitian extensions of the paradigmatic spin-1/2 XY chain in a magnetic field. Using the mapping of the model to free fermion form, we provide analytical…