Physics – Quantum Physics
Scientific paper
2011-09-06
Quantum Information and Computation, Vol. 12, No. 3&4 (2012) 0203-0214
Physics
Quantum Physics
16 pages, 3 figures
Scientific paper
Security proofs of quantum key distribution (QKD) often require post-processing schemes to simplify the data structure, and hence the security proof. We show a generic method to improve resulting secure key rates by partially reversing the simplifying post-processing for error correction purposes. We apply our method to the security analysis of device-independent QKD schemes and of detection-device-independent QKD schemes, where in both cases one is typically required to assign binary values even to lost signals. In the device-independent case, the loss tolerance threshold is cut down by our method from 92.4% to 90.9%.The lowest tolerable transmittance of the detector-device-independent scheme can be improved from 78.0% to 65.9%.
Lütkenhaus Norbert
Ma Xiongfeng
No associations
LandOfFree
Improved Data Post-Processing in Quantum Key Distribution and Application to Loss Thresholds in Device Independent QKD 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 Improved Data Post-Processing in Quantum Key Distribution and Application to Loss Thresholds in Device Independent QKD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved Data Post-Processing in Quantum Key Distribution and Application to Loss Thresholds in Device Independent QKD will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-93814