Quantum key distribution overcoming practical correlated intensity fluctuations

Abstract Intensity correlations between neighbouring pulses open a prevalent yet often overlooked security loophole in decoy-state quantum key distribution (QKD). As a solution, we present and experimentally demonstrate an intensity-correlation-tolerant QKD protocol that mitigates the negative effec...

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Bibliographic Details
Main Authors: Jia-Xuan Li, Feng-Yu Lu, Ze-Hao Wang, Víctor Zapatero, Marcos Curty, Shuang Wang, Zhen-Qiang Yin, Wei Chen, De-Yong He, Guang-Can Guo, Zheng-Fu Han
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:npj Quantum Information
Online Access:https://doi.org/10.1038/s41534-025-01059-0
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