论文标题
优化基于测量的损失公差的图形代码
Optimising graph codes for measurement-based loss tolerance
论文作者
论文摘要
图形代码在光子量子技术中起着重要作用，因为它们为量子损失（一种主要的噪声机制）提供了明显的保护。在这里，我们开发了分析和优化基于测量的公差和对任意图代码的计算错误的耐受性。使用这些工具，我们确定了最多12 Q Q QUAT和渐近大型模块化结构的优化代码。所开发的方法为各种光子量子技术带来了重大的好处，正如我们用新型的全光量子量子中继器状态所说明的，用于量子通信和高阈值融合的基于耐断层量子计算的基于高阈值融合的方案。
Graph codes play an important role in photonic quantum technologies as they provide significant protection against qubit loss, a dominant noise mechanism. Here, we develop methods to analyse and optimise measurement-based tolerance to qubit loss and computational errors for arbitrary graph codes. Using these tools we identify optimised codes with up to 12 qubits and asymptotically-large modular constructions. The developed methods enable significant benefits for various photonic quantum technologies, as we illustrate with novel all-photonic quantum repeater states for quantum communication and high-threshold fusion-based schemes for fault-tolerant quantum computing.
