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arXiv 1702.05155quant-ph
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一种经济有效的量子网络中与测量设备无关的量子密钥分发系统

A cost-effective measurement-device-independent quantum key distribution system for quantum networks

Raju Valivarthi, Qiang Zhou, Caleb John, Francesco Marsili, Varun B. Verma, Matthew D. Shaw, Sae Woo Nam, Daniel Oblak, Wolfgang Tittel

摘要:

我们实验实现了一个测量设备无关的量子密钥分发(MDI-QKD)系统的基础上,成本效益和商业可用的硬件,如分布式反馈(DFB)激光器和现场可编程门阵列(FPGA),使时间仓量子比特的准备和时间标记,和主动反馈系统,允许通过部署的光纤传输后的光子的时变特性的补偿。我们检查我们的系统的性能,并得出结论,它的设计不影响性能。我们的演示为基于MDI-QKD的星型拓扑量子网络铺平了道路,其距离超过100公里。

英文摘要:

We experimentally realize a measurement-device-independent quantum key distribution (MDI-QKD) system based on cost-effective and commercially available hardware such as distributed feedback (DFB) lasers and field-programmable gate arrays (FPGA) that enable time-bin qubit preparation and time-tagging, and active feedback systems that allow for compensation of time-varying properties of photons after transmission through deployed fibre. We examine the performance of our system, and conclude that its design does not compromise performance. Our demonstration paves the way for MDI-QKD-based quantum networks in star-type topology that extend over more than 100 km distance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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