About: Squeezing restoration by a noisy probe from a classically correlated environment

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Quantum squeezing, an irreducible resource for quantum communication and quantum metrology, is very fragile and can be lost due to classical noise produced by an environment. We show that a classical correlation between the squeezed signal and the classical probe partially monitoring noise from the environment can be used as a resource to restore the lost squeezing. Two basic methods, the feed-forward restoration and the unitary decoupling, are proposed to exploit this classical correlation. They are mutually compared for high and low squeezing and also in the different regimes of correlated classical noise. On one side, a robustness against classical probe noise to restore at least nonzero squeezing is discussed, and on the other side, a complete revealing of the high squeezing by a squeezed probe and unitary decoupling is proposed. Quantum squeezing, an irreducible resource for quantum communication and quantum metrology, is very fragile and can be lost due to classical noise produced by an environment. We show that a classical correlation between the squeezed signal and the classical probe partially monitoring noise from the environment can be used as a resource to restore the lost squeezing. Two basic methods, the feed-forward restoration and the unitary decoupling, are proposed to exploit this classical correlation. They are mutually compared for high and low squeezing and also in the different regimes of correlated classical noise. On one side, a robustness against classical probe noise to restore at least nonzero squeezing is discussed, and on the other side, a complete revealing of the high squeezing by a squeezed probe and unitary decoupling is proposed. (en)
Title	Squeezing restoration by a noisy probe from a classically correlated environment Squeezing restoration by a noisy probe from a classically correlated environment (en)
skos:prefLabel	Squeezing restoration by a noisy probe from a classically correlated environment Squeezing restoration by a noisy probe from a classically correlated environment (en)
skos:notation	RIV/61989592:15310/10:10221900!RIV11-GA0-15310___
http://linked.open...avai/riv/aktivita	N P Z
http://linked.open...avai/riv/aktivity	N, P(GA202/08/0224), P(LC06007), Z(MSM6198959213)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	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	289436
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/10:10221900
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	INTERFEROMETER; LIGHT; STATES; EQUIVALENCE CLASSES; CONTINUOUS-VARIABLES; QUANTUM TELEPORTATION; MINIMUM-UNCERTAINTY PACKETS (en)
http://linked.open.../riv/klicoveSlovo	CONTINUOUS-VARIABLES LIGHT QUANTUM TELEPORTATION STATES EQUIVALENCE CLASSES INTERFEROMETER MINIMUM-UNCERTAINTY PACKETS
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[1E0606DB413B]
http://linked.open...i/riv/nazevZdroje	Physical Review A
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Centre of Modern Optics Electro-optical control of quantum noise of light
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	81
http://linked.open...iv/tvurceVysledku	Filip, Radim
http://linked.open...n/vavai/riv/zamer	Measurement and Information in Optics
issn	1050-2947
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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