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arXiv · 1710.05511

Reliable numerical key rates for quantum key distribution

Adam Winick·Norbert Lütkenhaus·Patrick J. Coles
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Abstract

In this work, we present a reliable, efficient, and tight numerical method for calculating key rates for finite-dimensional quantum key distribution (QKD) protocols. We illustrate our approach by finding higher key rates than those previously reported in the literature for several interesting scenarios (e.g., the Trojan-horse attack and the phase-coherent BB84 protocol). Our method will ultimately improve our ability to automate key rate calculations and, hence, to develop a user-friendly software package that could be used widely by QKD researchers.

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Adam Winick, Norbert Lütkenhaus, Patrick J. Coles. 2017-10-16. Reliable numerical key rates for quantum key distribution. https://doi.org/10.22331/q-2018-07-26-77

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