论文标题
使用双耦合的马赫 - 泽尔德干涉仪
Phase noise-immune unconditionally secured classical key distribution using doubly coupled Mach-Zehnder interferometer
论文作者
论文摘要
最近，已经提出并证明了在双重马赫德尔干涉仪中的经典钥匙分布（USCKD）中无条件安全性（USCKD）的新物理学作为原理证明，其中无条件安全性不受量子密钥分布协议的无限制定理的影响。由于温度变化，大气湍流或机械振动引起的环境相波动，对于USCKD的两通道传输布局似乎是必需的。在这里，USCKD的两通道布局已被证明是一种环境噪声免疫协议，尤其是对于自由空间光学链路，如果考虑随机相位噪声，则可能无限的传输距离。
Recently, new physics for unconditional security in a classical key distribution (USCKD) in a frame of a double Mach-Zehnder interferometer has been proposed and demonstrated as a proof of principle, where the unconditional security is unaffected by the no-cloning theorem of quantum key distribution protocols. Due to environmental phase fluctuations caused by temperature variations, atmospheric turbulences, or mechanical vibrations, active phase locking seems to be necessary for the two-channel transmission layout of USCKD. Here, the two-channel layout of USCKD is demonstrated to be an environmental noise-immune protocol especially for free space optical links, where the transmission distance is potentially unlimited if random phase noises are considered.
