3 papers
quant-ph2025
Physical relevance of time-independent scattering calculations in non-Hermitian systems: The role of time-growing bound states
Chao Zheng
Time-independent scattering methods are widely employed to analyze transport in non-Hermitian systems. Their application, however, rests on a critical yet often overlooked assumpti…
quant-ph2024
Recurrence Theorem for Open Quantum Systems
Zhihang Liu, Chao Zheng
Quantum (Poincaré) recurrence theorem are known for closed quantum (classical) systems. Can recurrence happen in open systems? We provide the recurrence theorem for open quantum sy…
quant-ph2023
Continuous Phase Transition in Anyonic-PT Symmetric Systems
Zhihang Liu, Chao Zheng
We reveal the continuous phase transition in anyonic-PT symmetric systems, contrasting with the discontinuous phase transition corresponding to the discrete (anti-) PT symmetry. Th…