一个生成两个相关随机比特串的方法

A Scheme for Generating Two Correlated Random Bit Strings

给出了一个方案,可以将量子密钥分配协议BB84的效率提高近17%.在这个方案中,通信的双方共享一个概率串,其元素都是从区间(0,1)中随机均匀地选取的.在传送和接收一个量子比特的过程中,概率串的相应元素被双方作为各自从两个基中选择一个基的概率,之后利用一个细化的数据分析方案进行随后的数据分析.

This paper presents a method that can increase the efficiency of the quantum key distribution scheme BB84 by 17%.In this method,a probabilistic string,whose elements are randomly and uniformly selected from the interval（0,1）,is shared by the two communication parties.During a quantum bit transmission and reception process,a corresponding element from the probabilistic string is used as a probability for the two communication parties to choose one of the two polarization bases.A refined data analysis process is then used to do the subsequent data analysis.