Showing quant-phShow all
2 papers · 1 filter
quant-ph2026
Observation of Universal Spectral Moments and the Dynamic Dispersive-to-Proliferative Transition
Jia-Xin Zhong, Chang Shu, Nan Cheng +4
In non-Hermitian systems, spectra can be maximally boundary-sensitive, yet bulk physics need not be. Here we experimentally show that spectral moments provide boundary-robust bulk…
quant-ph2025
Dynamical Quantum Phase Transitions and Many-Body Backflow in Open Quantum Systems
Kai Zhang, Chang Shu, Kai Sun
Dynamical quantum phase transitions (DQPTs) are non-equilibrium transitions characterized by the orthogonality between an initial quantum state and its time-evolved counterpart fol…