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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F05%3A00002155%21RIV06-MSM-15310___
rdf:type
skos:Concept n13:Vysledek
dcterms:description
We investigate the optimal distribution of quantum information over multipartite systems in asymmetric settings. We introduce cloning transformations that take N identical replicas of a pure state in any dimension as input and yield a collection of clones with nonidentical fidelities. As an example, if the clones are partitioned into a set of M-A clones with fidelity F-A and another set of M-B clones with fidelity F-B, the trade-off between these fidelities is analyzed, and particular cases of optimal N -> M-A+M-B cloning machines are exhibited. We also present an optimal 1 -> 1+1+1 cloning machine, which is an example of a tripartite fully asymmetric cloner. Finally, it is shown how these cloning machines can be optically realized. We investigate the optimal distribution of quantum information over multipartite systems in asymmetric settings. We introduce cloning transformations that take N identical replicas of a pure state in any dimension as input and yield a collection of clones with nonidentical fidelities. As an example, if the clones are partitioned into a set of M-A clones with fidelity F-A and another set of M-B clones with fidelity F-B, the trade-off between these fidelities is analyzed, and particular cases of optimal N -> M-A+M-B cloning machines are exhibited. We also present an optimal 1 -> 1+1+1 cloning machine, which is an example of a tripartite fully asymmetric cloner. Finally, it is shown how these cloning machines can be optically realized. Je studována optimální asymetrická distribuce kvantové informace meziněkolik příjemců. Je definována obecná asymetrická kvantová kopírovacítransformace, jež z N replik daného stavu produkuje M přibližných kopií,přičemž každá kopie může mít jinou fidelity. Je prezentováno několikexplicitních příkladů těchto asymetrických kvantových kopírovacíchpřístrojů a jsou navržena schémata pro jejich optickou realizaci.
dcterms:title
Asymetrické kvantové kopírování Multipartite asymmetric quantum cloning Multipartite asymmetric quantum cloning
skos:prefLabel
Multipartite asymmetric quantum cloning Asymetrické kvantové kopírování Multipartite asymmetric quantum cloning
skos:notation
RIV/61989592:15310/05:00002155!RIV06-MSM-15310___
n3:strany
042328-1-4
n3:aktivita
n18:Z
n3:aktivity
Z(MSM6198959213)
n3:cisloPeriodika
4
n3:dodaniDat
n12:2006
n3:domaciTvurceVysledku
n9:9410406 n9:8991081
n3:druhVysledku
n15:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
531643
n3:idVysledku
RIV/61989592:15310/05:00002155
n3:jazykVysledku
n8:eng
n3:klicovaSlova
quantrum cloning; asymetric
n3:klicoveSlovo
n6:quantrum%20cloning n6:asymetric
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[4EDF4E773DE6]
n3:nazevZdroje
Physical Review A
n3:obor
n4:BH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n12:2005
n3:svazekPeriodika
72
n3:tvurceVysledku
Fiurášek, Jaromír Cerf, Nicolas J. Gisin, Nicolas Acín, Antonio Iblisdir, Sofyan Filip, Radim
n3:zamer
n17:MSM6198959213
s:issn
1050-2947
s:numberOfPages
8
n11:organizacniJednotka
15310