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Statements

Subject Item
n2:RIV%2F00216224%3A14330%2F13%3A00080248%21RIV15-MSM-14330___
rdf:type
skos:Concept n9:Vysledek
dcterms:description
We fully characterize bipartite entanglement-annihilating (EA) channels that destroy entanglement of any state shared by subsystems and, thus, should be avoided in any entanglement-enabled experiment. Our approach relies on extending the problem to EA positive maps, the cone of which remains invariant under concatenation with partially positive maps. Due to this invariancy, positive EA maps adopt a well characterization and their intersection with completely positive trace-preserving maps results in the set of EA channels. In addition to a general description, we also provide sufficient operational criteria revealing EA channels. They have a clear physical meaning since the processes involved contain stages of classical information transfer for subsystems. We demonstrate the applicability of derived criteria for local and global depolarizing noises, and specify corresponding noise levels beyond which any initial state becomes disentangled after passing the channel. We fully characterize bipartite entanglement-annihilating (EA) channels that destroy entanglement of any state shared by subsystems and, thus, should be avoided in any entanglement-enabled experiment. Our approach relies on extending the problem to EA positive maps, the cone of which remains invariant under concatenation with partially positive maps. Due to this invariancy, positive EA maps adopt a well characterization and their intersection with completely positive trace-preserving maps results in the set of EA channels. In addition to a general description, we also provide sufficient operational criteria revealing EA channels. They have a clear physical meaning since the processes involved contain stages of classical information transfer for subsystems. We demonstrate the applicability of derived criteria for local and global depolarizing noises, and specify corresponding noise levels beyond which any initial state becomes disentangled after passing the channel.
dcterms:title
Bipartite entanglement-annihilating maps: Necessary and sufficient conditions Bipartite entanglement-annihilating maps: Necessary and sufficient conditions
skos:prefLabel
Bipartite entanglement-annihilating maps: Necessary and sufficient conditions Bipartite entanglement-annihilating maps: Necessary and sufficient conditions
skos:notation
RIV/00216224:14330/13:00080248!RIV15-MSM-14330___
n3:aktivita
n4:I
n3:aktivity
I
n3:cisloPeriodika
3
n3:dodaniDat
n8:2015
n3:domaciTvurceVysledku
n18:1365878
n3:druhVysledku
n13:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
63586
n3:idVysledku
RIV/00216224:14330/13:00080248
n3:jazykVysledku
n7:eng
n3:klicovaSlova
entaglement; entanglement-annihilating channels
n3:klicoveSlovo
n14:entaglement n14:entanglement-annihilating%20channels
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[F18DAE44A5D7]
n3:nazevZdroje
Physical Review
n3:obor
n6:BE
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n8:2013
n3:svazekPeriodika
88
n3:tvurceVysledku
Ziman, Mário Filippov, Sergey
n3:wos
000324393600006
s:issn
1050-2947
s:numberOfPages
7
n17:doi
10.1103/PhysRevA.88.032316
n11:organizacniJednotka
14330