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≲20.
@article{arxiv.1003.5464,
title = {Security Proof for Quantum Key Distribution Using Qudit Systems},
author = {Lana Sheridan and Valerio Scarani},
journal= {arXiv preprint arXiv:1003.5464},
year = {2015}
}
Comments
5 pages, 1 figure, version 3 corrects equations (9) and (11), and slightly modifies the figure to reflect the change to equation (11)