In this paper, we present an information reconciliation protocol designed for Continuous-Variable QKD using the Distributional Transform. By combining tools from copula and information theory, we present a method for extracting independent symmetric Bernoulli bits for Gaussian-modulated CVQKD protocols, which we called the Distributional Transform Expansion (DTE). We derived the expressions for the maximum reconciliation efficiency for both homodyne and heterodyne measurements, which, for the last, is achievable with an efficiency greater than 0.9 at a signal-to-noise ratio lower than -3.6 dB.

翻译：本文提出了一种基于分布变换的连续变量量子密钥分发信息协调协议。通过结合联结函数与信息论工具，我们提出了一种为高斯调制连续变量量子密钥分发协议提取独立对称伯努利比特的方法，称之为分布变换扩展（DTE）。我们推导了零差与外差测量下最大协调效率的表达式，其中在外差测量模式下，当信噪比低于-3.6 dB时，可实现的协调效率大于0.9。