噪声、贝尔不等式违反与设备独立量子密钥分发中的级联误差纠正
量子物理
2026-04-27 v1
摘要
设备独立量子密钥分发（DIQKD）通过依赖贝尔不等式的违反而实现信息论安全，无需信任量子设备。然而，DIQKD的实际实现对噪声极其敏感。在经典后处理阶段进行高效误差纠正对于提高保真度至关重要。本文研究噪声对Clauser-Horne-Shimony-Holt (CHSH) 值及其影响，并评估Cascade误差纠正的有效性。该协议通过奇偶校验和二进制搜索程序进行迭代式误差纠正。仿真结果表明，噪声显著降低CHSH值，削弱DIQKD所需的非局域关联强度。尽管如此，Cascade能够降低误差比率，大多数纠正发生在前几轮。这些发现凸显了在DIQKD系统中进行经典误差纠正的重要性。
引用
@article{arxiv.2604.22232,
title = {On the Interplay Between Noise, Bell Violation, and Cascade Error Correction in Device-Independent Quantum Key Distribution},
author = {Nguyen Duong Hoang Duy and Nguyen Trinh Dong and Vu Tuan Hai and Le Vu Trung Duong and Nguyen Van Tinh},
journal= {arXiv preprint arXiv:2604.22232},
year = {2026}
}
备注
6 pages. This paper is submitted to Green Technology and Sustainable Development (GTSD2026)