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quant-ph2025★ 5 cited
Yang-Lee edge singularity and quantum criticality in non-Hermitian PXP model
Wen-Yi Zhang, Meng-Yun Mao, Qing-Min Hu +3
We present a comprehensive theoretical framework for quantum criticality in the non-Hermitian detuned PXP model, and establish the complete phase diagram, which had remained elusiv…
quant-ph2024★ 7 cited
Quantum criticality of generalized Aubry-André models with exact mobility edges using fidelity susceptibility
Yu-Bin Liu, Wen-Yi Zhang, Tian-Cheng Yi +3
In this study, we explore the quantum critical phenomena in generalized Aubry-André models, with a particular focus on the scaling behavior at various filling states. Our approach…