10 citations · 14 across the 6 of their papers we have counts for
8 papers · 1 filter
Single-shot state preparation thresholds in quantum LDPC codes: soundness, confinement, and statistical mechanics
Yuanchen Zhao, Yi Yuan, Zhengyi Han +1
Single-shot error correction does not by itself establish equally direct and robust logical-state initialization. We study preparation of CSS quantum low-density parity-check code…
Zeno-Enhanced Probabilistic Error Cancellation with Quantum Error Detection Codes
Yi Yuan, Yuanchen Zhao, Dong E. Liu
Probabilistic error cancellation (PEC) is unbiased but suffers exponential sampling overhead set by noise-weighted circuit volume, whereas quantum error-detecting codes (QEDCs) rem…
Non-Commutative weak measurements: Entanglement, Symmetry Breaking, and the Role of Readout
Yuanchen Zhao, Li Rao, Dong E. Liu
The preparation of long-range entangled (LRE) states via quantum measurements is a promising strategy, yet its stability against realistic, non-commuting measurement noise remains…
Fragility of Magic State Distillation under Imperfect Measurements
Yunzhe Zheng, Yuanchen Zhao, Dong E. Liu
Magic state distillation (MSD) is the leading approach for producing the non-Clifford resources required for universal fault-tolerant quantum computation. Most prior analyses of MS…
Extracting Error Thresholds through the Framework of Approximate Quantum Error Correction Condition
Yuanchen Zhao, Dong E. Liu
The robustness of quantum memory against physical noises is measured by two methods: the exact and approximate quantum error correction (QEC) conditions for error recoverability, a…
Vulnerability of fault-tolerant topological quantum error correction to quantum deviations in code space
Yuanchen Zhao, Dong E. Liu
Quantum computers face significant challenges from quantum deviations or coherent noise, particularly during gate operations, which pose a complex threat to the efficacy of quantum…
Experimental test of Tsirelson's bound with a single photonic qubit
Zhiyu Tian, Yuan-Yuan Zhao, Hao Wu +2
For many protocols, quantum strategies have advantages compared with their classical counter-partners, and these advantages have attracted many interests and applications. One of t…
An analytic study of the independent coherent errors in the surface code
Yuanchen Zhao, Dong E. Liu
The realistic coherent errors could induce very different behaviors compared with their stochastic counterparts in the quantum error correction (QEC) and fault tolerant quantum com…