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quant-ph2026
Typical Mixing and Rare-State Bottlenecks in Open Quantum Systems
Caisheng Cheng, Ruicheng Bao
Mixing in open quantum systems is often summarized by a single worst-case time, even though that benchmark can be set by exponentially rare initial states. We show that for broad u…
quant-ph2026
Physically natural metric-measure Lindbladian ensembles and their learning hardness
Caisheng Cheng, Ruicheng Bao
In open quantum systems, a basic question at the interface of quantum information, statistical physics, and many-body dynamics is how well can one infer the structure of noise and…
quant-ph2024
Unconditionally decoherence-free quantum error mitigation by density matrix vectorization
Zhong-Xia Shang, Zi-Han Chen, Cai-Sheng Cheng
Fighting against noise is crucial for NISQ devices to demonstrate practical quantum applications. In this work, we give a new paradigm of quantum error mitigation based on the vect…