5 papers · 1 filter
Calibrating quantum gates up to 52 qubits in a superconducting processor
Daojin Fan, Guoding Liu, Shaowei Li +18
Benchmarking large-scale quantum gates, typically involving multiple native two-qubit and singlequbit gates, is crucial in quantum computing. Global fidelity, encompassing informat…
Establishing a New Benchmark in Quantum Computational Advantage with 105-qubit Zuchongzhi 3.0 Processor
Dongxin Gao, Daojin Fan, Chen Zha +151
In the relentless pursuit of quantum computational advantage, we present a significant advancement with the development of Zuchongzhi 3.0. This superconducting quantum computer pro…
Determining the upper bound of code distance of quantum stabilizer codes through Monte Carlo method based on fully decoupled belief propagation
Zhipeng Liang, Zicheng Wang, Zhengzhong Yi +3
Code distance is an important parameter for quantum stabilizer codes (QSCs). Directly precisely computing it is an NP-complete problem. However, the upper bound of code distance ca…
Recursive expansion of Tanner graph: a method to construct stabilizer codes with high coding rate
Zhengzhong Yi, Zhipeng Liang, Zicheng Wang +4
Quantum stabilizer codes face the problem of low coding rate. In this article, following the idea of recursively expanding Tanner graph proposed in our previous work, we try to con…
Improved Polar-code-based Efficient Post-processing Algorithm for Quantum Key Distribution
Junbing Fang, Zhengzhong Yi, Jin Li +5
Combined with one-time pad encryption scheme, quantum key distribution guarantees the unconditional security of communication in theory. However, error correction and privacy ampli…