连续变量量子密钥分配的量化预处理

Quantization preprocessing of Continuous Variable Quantum Key Distribution

从连续变量中提取出便于通信双方共享的离散值是连续变量量子密钥分配的关键技术之一,Slice量化是一种有效可行的方案。该方案能够让通信双方共享高度一致的二进制数据,为接下来进一步的数据协调和隐私放大做完善的前期工作。论文实现了Slice量化的预处理程序,该程序可以根据信道条件和实际要求计算出量化所必需的参考数据。

A critical problem in continuous variable quantum key distribution is, how to extract discrete data from continuous variables for both communication sides. Slice is an effective and feasible scheme, making both sides share highly consistent binary data, which are prepared for the following step, reconciliation and privacy amplification. This paper presents preprocessing of quantization, which can obtain useful data by inputting channel parameters and actual requirements.