论文标题
高维双向量子密钥分布协议的安全性
Security of a High Dimensional Two-Way Quantum Key Distribution Protocol
论文作者
论文摘要
双向量子密钥分布协议利用双向量子通信来建立共享的秘密密钥。由于攻击表面的增加，安全分析仍然具有挑战性。在这里，我们研究了PING PONG协议的高维变体，并在有限键设置中执行信息理论安全分析。我们的方法可能广泛适用于其他QKD协议，尤其是依靠双向渠道的协议。一路上，我们对应用于双向量子通信的高维量子状态显示了一些有趣的好处。
Two-way quantum key distribution protocols utilize bi-directional quantum communication to establish a shared secret key. Due to the increased attack surface, security analyses remain challenging. Here we investigate a high-dimensional variant of the Ping Pong protocol and perform an information theoretic security analysis in the finite-key setting. Our methods may be broadly applicable to other QKD protocols, especially those relying on two-way channels. Along the way, we show some fascinating benefits to high-dimensional quantum states applied to two-way quantum communication.
