Optimized-Eight-State CV-QKD Protocol Outperforming Gaussian Modulation Based Protocols
AuthorDjordjevic, Ivan B.
AffiliationUniv Arizona, Dept Elect & Comp Engn
KeywordsQuantum key distribution (QKD)
continuous variable (CV)-QKD
discrete modulation-based protocols
MetadataShow full item record
CitationI. B. Djordjevic, "Optimized-Eight-State CV-QKD Protocol Outperforming Gaussian Modulation Based Protocols," in IEEE Photonics Journal, vol. 11, no. 4, pp. 1-10, Aug. 2019, Art no. 4500610.
JournalIEEE PHOTONICS JOURNAL
Rights1943-0655 © 2019 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.
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AbstractIn this paper, an optimized-eight-state CV-QKD protocol is proposed significantly outperforming previously introduced discrete modulation (DM) protocols as well as the corresponding Gaussian modulation (GM)-based CV-QKD protocols for practical reconciliation efficiencies values in terms of both secret-key rate (SKR) and achievable distance. The proposed CV-QKD protocol also outperforms, in terms of SKR, the corresponding high-cost single-photon DV-QKD scheme, employing an array of multiplexed single-photon detectors, for several orders of magnitude. We also describe a generalized RF-assisted CV-QKD scheme with heterodyne detection applicable to arbitrary DM scheme, insensitive to the laser phase noise and frequency offset fluctuations.
NoteOpen access journal
VersionFinal published version
SponsorsMultidisciplinary University Research Initiative (MURI) Office of Naval Research (ONR) [N00014-13-1-0627]