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Experimental demonstration of post-selection-based continuous-variable quantum key distribution in the presence of Gaussian noise

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dc.contributor.authorSymul, Thomas
dc.contributor.authorAlton, Daniel
dc.contributor.authorAssad, Syed
dc.contributor.authorLance, Andrew
dc.contributor.authorWeedbrook, C
dc.contributor.authorRalph, Timothy Cameron
dc.contributor.authorLam, Ping Koy
dc.date.accessioned2015-12-08T22:18:24Z
dc.date.issued2007
dc.date.updated2015-12-08T08:16:10Z
dc.description.abstractIn realistic continuous-variable quantum key distribution protocols, an eavesdropper may exploit the additional Gaussian noise generated during transmission to mask her presence. We present a theoretical framework for a post-selection-based protocol which explicitly takes into account excess Gaussian noise. We derive a quantitative expression of the secret key rates based on the Levitin and Holevo bounds. We experimentally demonstrate that the post-selection-based scheme is still secure against both individual and collective Gaussian attacks in the presence of this excess noise.
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/1885/31332
dc.publisherAmerican Physical Society
dc.sourcePhysical Review A: Atomic, Molecular and Optical Physics
dc.subjectKeywords: Atomic physics; Gaussian noise (electronic); Light transmission; Quantum theory; Gaussian attacks; Holevo bounds; Quantum key distribution protocols; Selection-based scheme; Quantum cryptography
dc.titleExperimental demonstration of post-selection-based continuous-variable quantum key distribution in the presence of Gaussian noise
dc.typeJournal article
local.bibliographicCitation.lastpage4
local.bibliographicCitation.startpage030303/1
local.contributor.affiliationSymul, Thomas, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationAlton, Daniel, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationAssad, Syed, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationLance, Andrew, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationWeedbrook, C, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationRalph, Timothy Cameron, University of Queensland
local.contributor.affiliationLam, Ping Koy, College of Physical and Mathematical Sciences, ANU
local.contributor.authoruidSymul, Thomas, u4047027
local.contributor.authoruidAlton, Daniel, u4285627
local.contributor.authoruidAssad, Syed, u4365678
local.contributor.authoruidLance, Andrew, u3935691
local.contributor.authoruidWeedbrook, C, u4109106
local.contributor.authoruidLam, Ping Koy, u9305867
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor020604 - Quantum Optics
local.identifier.ariespublicationu4103646xPUB82
local.identifier.citationvolume76
local.identifier.doi10.1103/PhysRevA.76.030303
local.identifier.scopusID2-s2.0-34548708509
local.type.statusPublished Version

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