Mismatched-basis statistics enable quantum key distribution with uncharacterized qubit sources
Quantum Physics
2014-12-01 v3
Abstract
In the postprocessing of quantum key distribution, the raw key bits from the mismatched-basis measurements, where two parties use different bases, are normally discarded. Here, we propose a postprocessing method that exploits measurement statistics from mismatched-basis cases, and prove that incorporating these statistics enables uncharacterized qubit sources to be used in the measurement-device-independent quantum key distribution protocol and the Bennett-Brassard 1984 protocol, a case which is otherwise impossible.
Keywords
Cite
@article{arxiv.1407.1924,
title = {Mismatched-basis statistics enable quantum key distribution with uncharacterized qubit sources},
author = {Zhen-Qiang Yin and Chi-Hang Fred Fung and Xiongfeng Ma and Chun-Mei Zhang and Hong-Wei Li and Wei Chen and Shuang Wang and Guang-Can Guo and Zheng-Fu Han},
journal= {arXiv preprint arXiv:1407.1924},
year = {2014}
}
Comments
Part of this article contains a significant improvement over arXiv:1309.3819