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arXiv · 1003.5464

Security Proof for Quantum Key Distribution Using Qudit Systems

Lana Sheridan·Valerio Scarani
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Abstract

We provide security bounds against coherent attacks for two families of quantum key distribution protocols that use $d$-dimensional quantum systems. In the asymptotic regime, both the secret key rate for fixed noise and the robustness to noise increase with $d$. The finite-key corrections are found to be almost insensitive to $d\lesssim 20$.

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Lana Sheridan, Valerio Scarani. 2011-03-04. Security Proof for Quantum Key Distribution Using Qudit Systems. https://doi.org/10.1103/physreva.82.030301

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