更致密的平面色码
Denser Planar Color Codes
浏览论文内容
中文总结 AI 辅助
本文提出一种基于4.8.8色码的砖墙布局,利用十二层CNOT的周期性超密电路保持码距,相比三角色码和旋转表面码显著减少物理量子比特,并在超导架构下展现出有利的缩放性能。
中文摘要 AI 辅助
我们考虑在方格晶格上采用砖墙布局、具有最近邻门的4.8.8色码。我们识别出具有十二个CNOT层的周期性超密电路,这些电路似乎能保持这些码的完整距离。包括辅助量子比特在内,该族对于距离d使用q=(2d^2+5d-5)/2个物理量子比特:渐近地,这相当于相同码距下三角形6.6.6色码的2/3,以及旋转表面码的1/2。针对超导架构的电路级模拟表明,在合理的物理噪声率下,4.8.8色码具有有利的缩放行为,这既适用于平面码,也适用于周期性边界条件下的环形码。
英文摘要
We consider the 4.8.8 color code in a brickwork layout on the square lattice with nearest-neighbor gates. We identify periodic superdense circuits with twelve CNOT layers that appear to preserve the full distance of these codes. Including ancillas, the family uses $q=(2d^2+5d-5)/2$ physical qubits for distance $d$: asymptotically $2/3$ as many as the triangular 6.6.6 color code and $1/2$ as many as the rotated surface code at the same code distance. Circuit-level simulations targeting superconducting architectures demonstrate favorable scaling of 4.8.8 color codes at plausible physical noise rates, including both for planar codes and their toroidal cousins under periodic boundary conditions.
发表机构
- Google Quantum AI(谷歌量子人工智能)
机构由 AI 辅助整理,请以论文原文为准。