Optimizing QKD efficiency by addressing chromatic dispersion and time measurement uncertainty

• URL: http://arxiv.org/abs/2410.10953v1
• Date: Mon, 14 Oct 2024 18:00:02 GMT
• Title: Optimizing QKD efficiency by addressing chromatic dispersion and time measurement uncertainty
• Authors: Artur Czerwinski, Saeed Haddadi,
• Abstract summary: We present a Quantum Key Distribution (QKD) protocol that accounts for fundamental practical challenges. Our analysis provides a comprehensive framework for understanding the impact of these physical phenomena on QKD efficiency. In particular, by manipulating the chirp parameter of single-photon wave packets, we demonstrate significant improvements in key generation rates and an extended range of secure communication.
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• Abstract: In this paper, we present a Quantum Key Distribution (QKD) protocol that accounts for fundamental practical challenges, including chromatic dispersion, time measurement uncertainty, and dark counts. Our analysis provides a comprehensive framework for understanding the impact of these physical phenomena on QKD efficiency, offering practical strategies for enhancing the robustness and security of quantum communication systems in real-world applications. In particular, by manipulating the chirp parameter of single-photon wave packets, we demonstrate significant improvements in key generation rates and an extended range of secure communication.

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