论文标题
单个光子的多个度自由度的无关测量设备依赖性量子键分布
Measurement-device-independent quantum key distribution of multiple degrees of freedom of a single photon
论文作者
论文摘要
与测量设备无关的量子密钥分布（MDI-QKD）为我们提供了一种强大的方法，可以抵抗检测侧的所有攻击。除了无条件的安全性外，人们还寻求高关键发电率，但MDI-QKD的关键发电率相对较低。在本文中，我们提供了一种有效的方法来通过采用多个自由度（DOF）单个光子生成密钥来提高MDI-QKD的关键产生速率。与一个DOF中编码的其他高维MDI-QKD协议相比，我们的协议更灵活，对于我们的协议生成独立子系统中的键以及DOF中的检测失败或错误不会影响其他DOF中的信息编码。基于上述功能，我们的MDI-QKD协议可能在未来的量子通信字段中具有潜在的应用。
Measurement-device-independent quantum key distribution (MDI-QKD) provides us a powerful approach to resist all attacks at detection side. Besides the unconditional security, people also seek for high key generation rate, but MDI-QKD has relatively low key generation rate. In this paper, we provide an efficient approach to increase the key generation rate of MDI-QKD by adopting multiple degrees of freedom (DOFs) of single photons to generate keys. Compared with other high-dimension MDI-QKD protocols encoding in one DOF, our protocol is more flexible, for our protocol generating keys in independent subsystems and the detection failure or error in a DOF not affecting the information encoding in other DOFs. Based on above features, our MDI-QKD protocol may have potential application in future quantum communication field.
