Anomaly in Open Quantum Systems and its Implications on Mixed-State Quantum Phases

In this paper, we develop a systematic approach to characterize the ^{′}t Hooft anomaly in open quantum systems. Owing to nontrivial couplings to the environment, symmetries in such systems manifest as either strong or weak type. By representing their symmetry transformation through superoperators,...

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Bibliographic Details
Main Authors: Zijian Wang, Linhao Li
Format: Article
Language:English
Published: American Physical Society 2025-03-01
Series:PRX Quantum
Online Access:http://doi.org/10.1103/PRXQuantum.6.010347
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