论文标题
自由空间通道中的连续变量可衡量设备与依赖性量子密钥分布
Continuous-Variable Measurement-Device-Independent Quantum Key Distribution in Free-Space Channels
论文作者
论文摘要
空间通信领域是通信技术的领域，在这种范围内，衍射和大气效应都会导致损失和噪音，都变得越来越大。这里的相关问题是在这种据称严重的情况下，可以在用户之间牢固地（共享）（共享）（秘密密钥）。在目前的工作中，我们研究了在自由空间光学（FSO）链接上的测量设备独立（MDI）配置中的连续变量（CV）量子键分布（QKD）。我们评估了湍流制度，并为FSO链接的协议提供了合成的有限尺寸关键率分析。我们研究了短程，水平通信链路以及倾斜的路径，例如高空平台站（HAPS）系统。
The field of space communications is the realm of communication technologies where diffraction and atmospheric effects, both of which contribute to loss and noise, become overriding. The pertinent questions here are how and at which rate information (secret keys) can be securely transferred (shared) among users under such supposedly severe circumstances. In the present work we study continuous-variable (CV) quantum key distribution (QKD) in a measurement-device-independent (MDI) configuration over free-space optical (FSO) links. We assess the turbulence regime and provide a composable finite-size key rate analysis of the protocol for FSO links. We study both short-range, horizontal communication links as well as slant paths to, e.g., high-altitude platform station (HAPS) systems.
