论文标题
使用完全平行的量子通道的超快量子键分布
Ultrafast quantum key distribution using fully parallelized quantum channels
论文作者
论文摘要
量子信息处理的领域提供了受量子力学定律保护的安全通信，并且即将在敏感数据的信息传输中找到更广泛的应用程序。为了克服成本效益不足的障碍，正在对使用量子密钥分布（QKD）高数据吞吐量所需的许多组件进行广泛的研究。为了实现面向应用程序的解决方案，我们报告了用于在电信波长处实现用于插入高频宽带安全通信的多通道QKD系统。为此，已经开发了一个机架大小的多通道超导纳米型单光子探测器（SNSPD）系统，以及高度平行的时间相关的单光子计数（TCSPC）单元，并链接到FPGA控制的QKD评估QKD评估设置，从而可以使用持续的高分和分类密钥速率来进行高分速率。
The field of quantum information processing offers secure communication protected by the laws of quantum mechanics and is on the verge of finding wider application for information transfer of sensitive data. To overcome the obstacle of inadequate cost-efficiency, extensive research is being done on the many components required for high data throughput using quantum key distribution (QKD). Aiming for an application-oriented solution, we report on the realization of a multichannel QKD system for plug-and-play high-bandwidth secure communication at telecom wavelength. For this purpose, a rack-sized multichannel superconducting nanowire single photon detector (SNSPD) system, as well as a highly parallelized time-correlated single photon counting (TCSPC) unit have been developed and linked to an FPGA-controlled QKD evaluation setup allowing for continuous operation and achieving high secret key rates using a coherent-one-way protocol.
