论文标题
能源时纠缠量子密钥分布的有效信息对帐
Efficient Information Reconciliation for Energy-Time Entanglement Quantum Key Distribution
论文作者
论文摘要
基于图形的代码（例如低密度均衡检查（LDPC）代码）已显示出量子密钥分布（QKD）中信息对帐阶段有希望的。但是，现有的图形编码方案尚未完全利用QKD通道的属性。在这项工作中，我们首先研究基于能量纠缠光子的离散变量（DV）QKD的通道统计信息。然后，我们建立了一个所谓的平衡调制方案，该方案对此渠道有希望。根据调制，我们提出了一种局部全球图形编码方案，该方案有望实现良好的错误校正性能。
Graph based codes such as low density parity check (LDPC) codes have been shown promising for the information reconciliation phase in quantum key distribution (QKD). However, existing graph coding schemes have not fully utilized the properties of the QKD channel. In this work, we first investigate the channel statistics for discrete variable (DV) QKD based on energy-time entangled photons. We then establish a so-called balanced modulation scheme that is promising for this channel. Based on the modulation, we propose a joint local-global graph coding scheme that is expected to achieve good error-correction performance.
