GKP 码与量子 LDPC 码级联的线路级基准测试 Circuit-level benchmarks of GKP-concatenated qLDPC Codes
发表于Published in arXiv 预印本arXiv preprint, 2026
我们在三种噪声模型下比较了两类外码。使用 GKP 测量的连续读数进行译码时，两类码的有限尺寸逻辑错误率曲线都在更高的噪声强度处相交。在考虑位移误差如何沿综合征提取线路传播的模型中，所测 BB 码序列的交叉点约为 σ = 0.212，tricycle 码序列约为 σ = 0.142。
We benchmarked the two outer-code families under three noise models. Using continuous GKP readouts in the decoder shifted the finite-size crossings of the logical error curves to higher noise levels for both families. When the simulation tracked displacement errors through the syndrome-extraction circuit, the estimated crossings were σ = 0.212 for the selected BB codes and σ = 0.142 for the selected tricycle codes.
推荐引用：Recommended citation: Yuan Yao, Ruipeng Xing, Jianshuo Gao, Xiao Yuan. "Circuit-level benchmarks of GKP-concatenated qLDPC Codes." arXiv:2609.35282, 2026.
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