Physics – Quantum Physics
Scientific paper
2006-04-12
PHYSICAL REVIEW A 74, 032330 (2006)
Physics
Quantum Physics
Scientific paper
10.1103/PhysRevA.74.032330
Decoy states have recently been proposed as a useful method for substantially improving the performance of quantum key distribution protocols when a coherent state source is used. Previously, data post-processing schemes based on one-way classical communications were considered for use with decoy states. In this paper, we develop two data post-processing schemes for the decoy-state method using two-way classical communications. Our numerical simulation (using parameters from a specific QKD experiment as an example) results show that our scheme is able to extend the maximal secure distance from 142km (using only one-way classical communications with decoy states) to 181km. The second scheme is able to achieve a 10% greater key generation rate in the whole regime of distances.
Chen Kaiyou
Dupuis Frédéric
Fung Chi-Hang Fred
Lo Hoi-Kwong
Ma Xiongfeng
No associations
LandOfFree
Decoy state quantum key distribution with two-way classical post-processing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Decoy state quantum key distribution with two-way classical post-processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoy state quantum key distribution with two-way classical post-processing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-515181