论文标题
发送冗余空间的发送或不限制的双场量子键分布
Sending-or-Not-Sending Twin-Field Quantum Key Distribution with Redundant Space
论文作者
论文摘要
我们建议在Fock空间中采用冗余空间，例如在发送或不介绍的双场量子键分布（TF-QKD）中的偏振模式。借助冗余空间（例如光子极化），我们可以根据观察结果的额外数量后选择序列事件。这会在SNS协议的后选择事件中压缩弹置错误率。计算表明，使用冗余空间的方法可以大大提高实际TF-QKD的性能，尤其是当脉冲总数较小时。
We propose to adopt redundant space such as polarization mode in the sending-or-not-sending Twin-Field quantum key distribution (TF-QKD) in the Fock space. With the help of redundant space such as photon polarization, we can post-select events according to the outcome of the observation to the additional quantity. This compresses the bit-flip error rate in the post-selected events of the SNS protocol. The calculation shows that the method using redundant space can greatly improve the performance in practical TF-QKD, especially when the total number of pulses is small.
