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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F08%3A00005347%21RIV09-MSM-15310___
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Deterministický bezšumový zápis neznámého kvantového stavu do kvantové paměti pro spojité proměnné je navrhnut. Pro zápis jednofotonových stavů světla nebo superpozice koherentních stavů je využita postselekce, umožňují přiblížit se k ideálnímu zápisu. A deterministic excess-noise-free recording of unknown quantum states to continuous-variable quantum atomic memory is proposed. To reach this, the memory experiment is extended by the presqueezing of the recorded state of light and deterministic squeezing post-correction of the recorded state. To upload highly nonclassical resources to the memory, such as single-photon state or superposition of coherent states, a probabilistic method is suggested. With the help of presqueezing of the resource state of light and probabilistic squeezing post-correction, this probabilistic upload approaches a lossless transfer of these highly nonclassical states into the quantum memory. Without the squeezing post-correction, the highly nonclassical state can still be probabilistically uploaded in the limit of a weak light-atom coupling. A deterministic excess-noise-free recording of unknown quantum states to continuous-variable quantum atomic memory is proposed. To reach this, the memory experiment is extended by the presqueezing of the recorded state of light and deterministic squeezing post-correction of the recorded state. To upload highly nonclassical resources to the memory, such as single-photon state or superposition of coherent states, a probabilistic method is suggested. With the help of presqueezing of the resource state of light and probabilistic squeezing post-correction, this probabilistic upload approaches a lossless transfer of these highly nonclassical states into the quantum memory. Without the squeezing post-correction, the highly nonclassical state can still be probabilistically uploaded in the limit of a weak light-atom coupling.
dcterms:title
Excess-noise-free recording and uploading of nonclassical states to continuous-variable quantum memory Zápis neklasických stavů do atomové paměti pro spojité promenné bez přidaného šumu Excess-noise-free recording and uploading of nonclassical states to continuous-variable quantum memory
skos:prefLabel
Excess-noise-free recording and uploading of nonclassical states to continuous-variable quantum memory Excess-noise-free recording and uploading of nonclassical states to continuous-variable quantum memory Zápis neklasických stavů do atomové paměti pro spojité promenné bez přidaného šumu
skos:notation
RIV/61989592:15310/08:00005347!RIV09-MSM-15310___
n3:aktivita
n17:P n17:Z
n3:aktivity
P(GA202/08/0224), P(LC06007), Z(MSM6198959213)
n3:cisloPeriodika
1
n3:dodaniDat
n14:2009
n3:domaciTvurceVysledku
n13:9410406
n3:druhVysledku
n15:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n5:predkladatel
n3:idSjednocenehoVysledku
367058
n3:idVysledku
RIV/61989592:15310/08:00005347
n3:jazykVysledku
n10:eng
n3:klicovaSlova
quantum communication; quantum computing
n3:klicoveSlovo
n12:quantum%20computing n12:quantum%20communication
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[6F7276AD053D]
n3:nazevZdroje
Physical Review A
n3:obor
n11:BH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n9:LC06007 n9:GA202%2F08%2F0224
n3:rokUplatneniVysledku
n14:2008
n3:svazekPeriodika
78
n3:tvurceVysledku
Filip, Radim
n3:zamer
n18:MSM6198959213
s:issn
1050-2947
s:numberOfPages
1
n6:organizacniJednotka
15310