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quant-ph2025
Optimal Distributed Similarity Estimation of Quantum Channels
Congcong Zheng, Kun Wang, Xutao Yu +2
As quantum processors are deployed across different hardware platforms and remote cloud laboratories, a basic physical question is whether two black-box devices realize the same qu…
quant-ph2025
Efficient Self-Consistent Quantum Comb Tomography on the Product Stiefel Manifold
Xinlin He, Zetong Li, Congcong Zheng +3
Characterizing non-Markovian quantum dynamics is currently hindered by the self-inconsistency and high computational complexity of existing quantum comb tomography (QCT) methods. I…
quant-ph2025
Distributed Quantum Inner Product Estimation with Structured Random Circuits
Congcong Zheng, Kun Wang, Xutao Yu +2
Distributed inner product estimation (DIPE) is a fundamental task in quantum information, aiming to estimate the inner product between two unknown quantum states prepared on distri…