Analysis of a High-Dimensional Extended B92 Protocol
Quantum Physics
2021-06-23 v1
Abstract
Quantum key distribution (QKD) allows two parties to establish a shared secret key that is secure against all-powerful adversaries. One such protocol named B92 is quite appealing due to its simplicity but is highly sensitive to channel noise. In this work, we investigate a high-dimensional variant of an extended version of the B92 protocol and show that it can distill a key over high noise channels. The protocol we consider requires that Alice send only three high-dimensional states and Bob only perform partial measurements. We perform an information-theoretic security analysis of our protocol and compare its key rate to that of a high-dimensional BB84 protocol over depolarization and amplitude damping channels.
Cite
@article{arxiv.2106.11460,
title = {Analysis of a High-Dimensional Extended B92 Protocol},
author = {Hasan Iqbal and Walter O. Krawec},
journal= {arXiv preprint arXiv:2106.11460},
year = {2021}
}