About: Classical correlations can enhance the continuous-variable quantum key distribution

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We address the effect of classical correlations, introduced to a quantum resource used for the continuous-variable quantum key distribution. The set-up is based on an entangled source with two trusted parties performing homodyne measurements on their modes, thus corresponding to the preparation of squeezed states, while one of the modes is traveling to the remote party through lossy and noisy channel. The security of the scheme is considered against individual and collective eavesdropping attacks. It is shown that the classical correlations added to the entangled source increase the performance of the scheme both quantatively in terms of the secure key rate and qualitatively in terms of the security region with respect to the tolerable excess noise for both types of attacks and the improvement is essentially significant for sources possessing low degree of nonclassicality. We address the effect of classical correlations, introduced to a quantum resource used for the continuous-variable quantum key distribution. The set-up is based on an entangled source with two trusted parties performing homodyne measurements on their modes, thus corresponding to the preparation of squeezed states, while one of the modes is traveling to the remote party through lossy and noisy channel. The security of the scheme is considered against individual and collective eavesdropping attacks. It is shown that the classical correlations added to the entangled source increase the performance of the scheme both quantatively in terms of the secure key rate and qualitatively in terms of the security region with respect to the tolerable excess noise for both types of attacks and the improvement is essentially significant for sources possessing low degree of nonclassicality. (en)
Title	Classical correlations can enhance the continuous-variable quantum key distribution Classical correlations can enhance the continuous-variable quantum key distribution (en)
skos:prefLabel	Classical correlations can enhance the continuous-variable quantum key distribution Classical correlations can enhance the continuous-variable quantum key distribution (en)
skos:notation	RIV/61989592:15310/11:33118489!RIV12-MSM-15310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GC202/07/J040), P(GPP205/10/P321), P(LC06007), Z(MSM6198959213)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Usenko, Vladyslav Filip, Radim
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	190524
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/11:33118489
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Cryptography (en)
http://linked.open.../riv/klicoveSlovo	Cryptography
http://linked.open...odStatuVydavatele	RU - Ruská federace
http://linked.open...ontrolniKodProRIV	[8AE723A229EF]
http://linked.open...i/riv/nazevZdroje	Optics and Spectroscopy
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Quantum communication with continuous variables through noisy channels Continuous variable quantum key broadcasting Centre of Modern Optics
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	111
http://linked.open...iv/tvurceVysledku	Filip, Radim Usenko, Vladyslav
http://linked.open...ain/vavai/riv/wos	000297710000001
http://linked.open...n/vavai/riv/zamer	Measurement and Information in Optics
issn	0030-400X
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1134/S0030400X11110300
http://localhost/t...ganizacniJednotka	15310

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