论文标题
快速单光子探测器和实时键蒸馏：启用高秘密密钥QKD系统
Fast Single Photon Detectors and real-time Key Distillation: Enabling High Secret Key Rate QKD Systems
论文作者
论文摘要
量子密钥分布在过去20年中取得了持续的进展，现在可以在市售。但是，秘密关键率（SKR）仍然仅限于几个Mbps。在这里，我们提出了一个自定义的多轴超导型纳米线单光子探测器，快速采集和实时键蒸馏电子设备，删除了两个障碍，并允许将SKR增加超过一个数量级。结合一个简单的2.5 GHz时钟量子量子键分配系统，我们可以在10.0 km的距离内以64 Mbps的速度生成秘密键，并且在102.4 km的距离内，速度为3.0 Mbps，并使用实时钥匙蒸馏。
Quantum Key Distribution has made continuous progress over the last 20 years and is now commercially available. However, the secret key rates (SKR) are still limited to a few Mbps. Here, we present a custom multipixel superconducting nanowire single-photon detectors and fast acquisition and real-time key distillation electronics, removing two roadblocks and allowing an increase of the SKR of more than an order of magnitude. In combination with a simple 2.5 GHz clocked time-bin quantum key distribution system, we can generate secret keys at a rate of 64 Mbps over a distance of 10.0 km and at a rate of 3.0 Mbps over a distance of 102.4 km with real-time key distillation.
