Front Cover: Effect and Compensation of Polarization-Dependent Loss in Free-Space Reference Frame Independent Quantum Key Distribution (Adv. Quantum Technol. 3/2025)
Kyongchun Lim, Byung-Seok Choi, Ju Hee Baek, Minchul Kim, Joong-Seon Choe, Kap-Joong Kim, Dong Churl Kim, Junsang Oh, Chun Ju Youn
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Abstract
In article number 2400492, Kyongchun Lim, Chun Ju Youn, and co-workers investigate the effect of polarization-dependent loss (PDL) on free-space quantum key distribution (QKD) and proposes a fundamental compensation method that optically corrects PDL without relying on post-selection techniques. Experimental results demonstrate that the proposed method effectively mitigates PDL, improving polarization state integrity and significantly enhancing QKD performance, contributing to more robust and secure quantum key distribution systems.
在2400492号文章中，Kyongchun Lim、Chun Ju Youn及其同事研究了偏振相关损耗（PDL）对自由空间量子密钥分发（QKD）的影响，并提出了一种无需依赖后选择技术就能光学校正PDL的基本补偿方法。实验结果表明，该方法有效地缓解了PDL，提高了极化状态完整性，显著提高了量子密钥分配性能，有助于实现更鲁棒和安全的量子密钥分发系统。
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