On the Discretized Gaussian Modulation (DGM)- Based Continuous Variable-QKD
AuthorDjordjevic, Ivan B.
AffiliationUniv Arizona, Dept Elect & Comp Engn
quantum key distribution (QKD)
continuous variable (CV)-QKD
secret-key rate (SKR)
MetadataShow full item record
CitationDjordjevic, I. B. (2019). On the Discretized Gaussian Modulation (DGM)-Based Continuous Variable-QKD. IEEE Access, 7, 65342-65346.
RightsCopyright © 2019, IEEE
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractTo overcome the low reconciliation efficiency problem of Gaussian modulation (GM)-basedcontinuous variable (CV)-quantum key distribution (QKD), in this paper, we propose to use discretized GM (DGM)-based-CV-QKD. The proposed CV-QKD scheme has complexity and reconciliation efficiency similar to that of discrete modulation (DM)-based-CV-QKD and at the same time solves for the problem of the nonexistence of strict security proofs for the DM-CV-QKD under the collective attacks. We demonstrate that the 32-points-based DGM CV-QKD can closely approach the theoretical SKR-limit in medium and high channel losses regimes. On the other hand, the 64-points-based DGM CV-QKD scheme closely approaches the SKR-limit for all channel losses.
NoteOpen access journal
VersionFinal published version
SponsorsONR MURI program [N00014-13-1-0627]