论文标题
在现实世界中纤维网格上处理节点量子中继器的要求
Requirements for a processing-node quantum repeater on a real-world fiber grid
论文作者
论文摘要
我们从数值上研究了Delft的荷兰城市与Eindhoven之间的纠缠分布，并通过加工节点量子中继器实现，并确定使用颜色中心和捕获离子来确定可验证的盲量量子计算的最小硬件要求。考虑到现实世界中的光纤网格施加的限制以及使用详细的硬件特异性模型，我们的结果是获得了我们的结果。通过将我们的结果与在理想化的设置中获得的结果进行比较，我们表明简化导致了硬件需求的扭曲图片，尤其是在内存相干和光子收集方面。我们开发了适用于使用NetSquid研究任意处理节点中继器链的通用机器，NetSquid是量子网络的离散事件模拟器。这使我们能够包括时间相关的噪声模型，并模拟具有截止值的中继器协议，包括所需的经典控制通信。我们通过在高性能计算集群上使用遗传算法解决优化问题来发现最小的硬件要求。我们的工作为进一步的实验进步提供了指导，并展示了在理想情况下研究量子重复器要求的局限性。
We numerically study the distribution of entanglement between the Dutch cities of Delft and Eindhoven realized with a processing-node quantum repeater and determine minimal hardware requirements for verifiable blind quantum computation using color centers and trapped ions. Our results are obtained considering restrictions imposed by a real-world fiber grid and using detailed hardware-specific models. By comparing our results to those we would obtain in idealized settings we show that simplifications lead to a distorted picture of hardware demands, particularly on memory coherence and photon collection. We develop general machinery suitable for studying arbitrary processing-node repeater chains using NetSquid, a discrete-event simulator for quantum networks. This enables us to include time-dependent noise models and simulate repeater protocols with cut-offs, including the required classical control communication. We find minimal hardware requirements by solving an optimization problem using genetic algorithms on a high-performance-computing cluster. Our work provides guidance for further experimental progress, and showcases limitations of studying quantum-repeater requirements in idealized situations.
