Abstract：
:Quantum key distribution involving decoy-states is a significant application of quantum information. By using three-intensity decoy-states of single-photon-added coherent sources, we propose a practically realizable scheme on quantum key distribution which approaches very closely the ideal asymptotic case of an infinite number of decoy-states. We make a comparative study between this scheme and two other existing ones, i.e., two-intensity decoy-states with single-photon-added coherent sources, and three-intensity decoy-states with weak coherent sources. Through numerical analysis, we demonstrate the advantages of our scheme in secure transmission distance and the final key generation rate.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Wang D,Li M,Guo GC,Wang Qdoi
10.1038/srep15130subject
Has Abstractpub_date
2015-10-14 00:00:00pages
15130issn
2045-2322pii
srep15130journal_volume
5pub_type
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