4 papers
Bidirectional Decoding for Concatenated Quantum Hamming Codes
Chao Zhang, Zipeng Wu, Jiahui Wu +1
High-rate concatenated quantum codes offer a promising pathway toward fault-tolerant quantum computation, yet designing efficient decoders that fully exploit their error-correction…
Transversal Gates in Nonadditive Quantum Codes
Chao Zhang, Zipeng Wu, Shilin Huang +1
Transversal gates play a crucial role in suppressing error propagation in fault-tolerant quantum computation, yet they are intrinsically constrained: any nontrivial code encoding a…
Investigating Pure State Uniqueness in Tomography via Optimization
Jiahui Wu, Zheng An, Chao Zhang +3
Quantum state tomography (QST) is crucial for understanding and characterizing quantum systems through measurement data. Traditional QST methods face scalability challenges, requir…
Perturbational Decomposition Analysis for Quantum Ising Model with Weak Transverse Fields
Youning Li, Junfeng Huang, Chao Zhang +1
This work presented a perturbational decomposition method for simulating quantum evolution under the one-dimensional Ising model with both longitudinal and transverse fields. By tr…