Measurement-device-independent quantum key distribution with source state errors and statistical fluctuation

Abstract

We show how to calculate the secure final key rate in the four-intensity decoy-state MDI-QKD protocol with both source errors and statistical fluctuations with a certain failure probability. Our results rely only on the range of only a few parameters in the source state. All imperfections in this protocol have been taken into consideration without any unverifiable error patterns.

Published in PRA in March 2017. We present general results for MDIQKD with both intensity error of source and statistical fluctuation