2 papers
quant-ph2026
Survival of Hermitian Criticality in the Non-Hermitian Framework
Fei Wang, Guoying Liang, Zecheng Zhao +3
In this work, we investigate many-body phase transitions in a one-dimensional anisotropic XY model subject to a complex-valued transverse field. Within the biorthogonal framework,…
quant-ph2026
The Intrinsic Connection between Dynamical Phase Transitions and Magnetization in the 1D XY Model
Lin-Yue Luo, Wei-Lin Li, Bao-Ming Xu +1
In this manuscript, we study the quench dynamics of a transverse-field XY model starting from coherent Gibbs states. The results reveal that the initial strength of magnetization p…