About: Continuous-variable teleportation of a negative Wigner function

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Teleportation is a basic primitive for quantum communication and quantum computing. We address the problem of continuous-variable (unconditional and conditional) teleportation of a pure single-photon state and a mixed attenuated single-photon state generally in a nonunity-gain regime. Our figure of merit is the maximum negativity of the Wigner function, which demonstrates a highly nonclassical feature of the teleported state. We find that the negativity of the Wigner function of the single-photon state can be unconditionally teleported for an arbitrarily weak squeezed state used to create the entangled state shared in teleportation. In contrast, for the attenuated single-photon state there is a strict threshold squeezing one has to surpass to successfully teleport the negativity of its Wigner function. The conditional teleportation allows one to approach perfect transmission of the single photon for an arbitrarily low squeezing at a cost of decrease of the success rate. Teleportation is a basic primitive for quantum communication and quantum computing. We address the problem of continuous-variable (unconditional and conditional) teleportation of a pure single-photon state and a mixed attenuated single-photon state generally in a nonunity-gain regime. Our figure of merit is the maximum negativity of the Wigner function, which demonstrates a highly nonclassical feature of the teleported state. We find that the negativity of the Wigner function of the single-photon state can be unconditionally teleported for an arbitrarily weak squeezed state used to create the entangled state shared in teleportation. In contrast, for the attenuated single-photon state there is a strict threshold squeezing one has to surpass to successfully teleport the negativity of its Wigner function. The conditional teleportation allows one to approach perfect transmission of the single photon for an arbitrarily low squeezing at a cost of decrease of the success rate. (en)
Title	Continuous-variable teleportation of a negative Wigner function Continuous-variable teleportation of a negative Wigner function (en)
skos:prefLabel	Continuous-variable teleportation of a negative Wigner function Continuous-variable teleportation of a negative Wigner function (en)
skos:notation	RIV/61989592:15310/10:10213006!RIV11-GA0-15310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(7E08028), P(GA202/08/0224), P(LC06007), P(ME10156), Z(MSM6198959213)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Mišta, Ladislav 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	251991
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/10:10213006
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	OPERATIONS; OSCILLATOR; COMMUNICATION; STATES; QUANTUM TELEPORTATION (en)
http://linked.open.../riv/klicoveSlovo	OSCILLATOR QUANTUM TELEPORTATION STATES COMMUNICATION OPERATIONS
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[DC4A0E24AEBA]
http://linked.open...i/riv/nazevZdroje	Physical Review A
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Centre of Modern Optics Measurement-induced quantum information processing with continuous variables Computing with Mesoscopic Photonic and Atomic States Electro-optical control of quantum noise of light
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	82
http://linked.open...iv/tvurceVysledku	Filip, Radim Furusawa, Akira MIŠTA, Ladislav
http://linked.open...n/vavai/riv/zamer	Measurement and Information in Optics
issn	1050-2947
number of pages	11 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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