Title
Security of practical phase-coding quantum key distribution
Abstract
Security proof of practical quantum key distribution (QKD) has attracted a lot of atten-tions in recent years. Most of real-life QKD implementations are based on phase-codingBB84 protocol, which usually use Unbalanced Mach-Zehnder Interferometer (UMZI) asthe information encoder and decoder. However, the long arm and short arm of UMZIwill introduce different loss in practical experimental realizations, the state emitted byAlice's side is nolonger perfect BB84 states correspondingly. In this paper, we will givethe security analysis in this situation. Counterintuitively, active compensation for thisdifferent loss will only lower the secret key bit rate.
Year
Venue
Keywords
2010
Quantum Information & Computation
different loss,practical quantum key distribution,security proof,thisdifferent loss,short arm,security analysis,practical experimental realization,long arm,real-life qkd implementation,phase-coding quantum key distribution,secret key bit rate,quantum physics,mach zehnder interferometer,quantum key distribution
Field
DocType
Volume
Quantum key distribution,Discrete mathematics,Active compensation,Theoretical computer science,Interferometry,Implementation,Electronic engineering,Phase coding,Security analysis,Encoder,BB84,Mathematics
Journal
10
Issue
ISSN
Citations 
9
Quantum Information and Computation, Vol. 10, No. 9&10 (2010) 0771-0779
1
PageRank 
References 
Authors
0.63
2
5
Name
Order
Citations
PageRank
Hongwei Li14713.04
Zhen-Qiang Yin284.93
Zheng-Fu Han3134.99
Wansu Bao476.02
Guangcan Guo5229.33