2 papers
quant-ph2025
Exploring dynamical quantum phase transition from pure states to mixed states through extended Su-Schrieffer-Heeger models
Kaiyuan Cao, Tianren Zhang, Xiangping Jiang +1
We investigate dynamical quantum phase transitions (DQPTs) in both pure and mixed states within the extended SSH model framework, focusing on the SSH-3 and SSH-4 variants, which di…
cond-mat.stat-mech2024
Exploring Dynamical Phase Transitions in the XY Chain through Linear Quench: Early and Long-term Perspectives
Kaiyuan Cao, Peiqing Tong
We investigate the nonequilibrium dynamics induced by a finite-time linear quench in the XY chain. Initially, we examine the dynamical quantum phase transition, characterized by th…