6 citations · 12 across the 7 of their papers we have counts for
10 papers
Pauli-resolved virtual distillation
Si-Yuan Chen, Congcong Zheng, Kun Wang +1
Learning the full Pauli profile of the virtually distilled quantum state has so far required exponentially many copies of . We show that all squared P…
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…
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…
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…
GHZ-W Genuinely Entangled Subspace Verification with Adaptive Local Measurements
Congcong Zheng, Ping Xu, Kun Wang +1
Genuinely entangled subspaces (GESs) are valuable resources in quantum information science. Among these, the three-qubit GHZ-W GES, spanned by the three-qubit Greenberger-Horne-Zei…
Efficient Verification of Stabilizer Code Subspaces with Local Measurements
Congcong Zheng, Xutao Yu, Zaichen Zhang +2
We address the task of verifying whether a quantum computer, designed to be protected by a specific stabilizer code, correctly encodes the corresponding logical qubits. To achieve…
Quantum Network Tomography via Learning Isometries on Stiefel Manifold
Ze-Tong Li, Xin-Lin He, Cong-Cong Zheng +4
Explicit mathematical reconstructions of quantum networks play a significant role in developing quantum information science. However, tremendous parameter requirements and physical…
Non-Markovian Quantum Gate Set Tomography
Ze-Tong Li, Cong-Cong Zheng, Fan-Xu Meng +4
Engineering quantum devices requires reliable characterization of the quantum system, including qubits, quantum operations (also known as instruments) and the quantum noise. Recent…
Cross-Platform Comparison of Arbitrary Quantum Processes
Congcong Zheng, Xutao Yu, Kun Wang
In this work, we present a protocol for comparing the performance of arbitrary quantum processes executed on spatially or temporally disparate quantum platforms using Local Operati…
Detecting and Eliminating Quantum Noise of Quantum Measurements
Shuanghong Tang, Congcong Zheng, Kun Wang
In this work, we propose a two-stage procedure to systematically address quantum noise inherent in quantum measurements. The idea behind it is intuitive: we first detect and then e…