Relation between information and disturbance in quantum key distribution protocol with classical Alice
Quantum Physics
2011-08-18 v2
Abstract
The "semiquantum" key distribution protocol introduced by Zou et al. [Phys. Rev. A Vol.79, 052312 (2009)] is examined. The protocol while using two-way quantum communication requires only Bob to be fully quantum. We derive a trade-off inequality between information gained by Eve and the disturbance observed by legitimate users. It guarantees that Eve cannot obtain large information if the disturbance is sufficiently small.
Cite
@article{arxiv.1105.2499,
title = {Relation between information and disturbance in quantum key distribution protocol with classical Alice},
author = {Takayuki Miyadera},
journal= {arXiv preprint arXiv:1105.2499},
year = {2011}
}
Comments
To appear in International Journal of Quantum Information