论文标题
子载波波和双轨编码之间的光子接口
Photonic interface between subcarrier wave and dual rail encodings
论文作者
论文摘要
具有多模子载体波编码的量子键分布有利于抵抗环境干扰。为了在长距离量子通信中应用，该编码必须与纠缠辅助的量子中继器兼容，这些量子中继器通常设计用于使用双轨编码。我们使用线性光学电路提出并演示了子载波波和双轨编码之间的接口，其忠诚度超过92 \％。开发的方案可能会在将来的异质量子网络中找到一个应用程序，该量子网络将量子密钥分布与受信任和未经信任的节点相结合。
Quantum key distribution with multimode subcarrier wave encoding is propitious for being robust against environmental disturbance. For application in long-distance quantum communications this encoding has to be compatible with entanglement-assisted quantum repeaters that are commonly designed to work with dual rail encodings. We propose and demonstrate an interface between subcarrier wave and dual rail encodings with a fidelity of more than 92\% using a linear optical circuit. The developed scheme may find an application in future heterogeneous quantum networks that combine quantum key distribution with trusted and non-trusted nodes.
