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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F02%3A00001487%21RIV%2F2003%2FMSM%2F153103%2FN
rdf:type
skos:Concept n13:Vysledek
dcterms:description
We study the Braunstein-Kimble setup for teleportation of a quantum state of a single mode of an optical field. We assume that the sender and receiver share a two-mode. Gaussian state and we identify optimum local Gaussian operations that maximize the teleportation fidelity. We consider the fidelity of teleportation of pure Gaussian states and we also introduce the fidelity of the teleportation transformation. We show in an explicit example that in some cases the optimum local operation is not a simple unitary symplectic transformation but some more general completely positive map. We study the Braunstein-Kimble setup for teleportation of a quantum state of a single mode of an optical field. We assume that the sender and receiver share a two-mode. Gaussian state and we identify optimum local Gaussian operations that maximize the teleportation fidelity. We consider the fidelity of teleportation of pure Gaussian states and we also introduce the fidelity of the teleportation transformation. We show in an explicit example that in some cases the optimum local operation is not a simple unitary symplectic transformation but some more general completely positive map.
dcterms:title
Improving the fidelity of continuous-variable teleportation via local operations Improving the fidelity of continuous-variable teleportation via local operations
skos:prefLabel
Improving the fidelity of continuous-variable teleportation via local operations Improving the fidelity of continuous-variable teleportation via local operations
skos:notation
RIV/61989592:15310/02:00001487!RIV/2003/MSM/153103/N
n3:strany
012304-1-8
n3:aktivita
n18:Z n18:P
n3:aktivity
P(LN00A015), Z(MSM 153100009)
n3:cisloPeriodika
1
n3:dodaniDat
n10:2003
n3:domaciTvurceVysledku
n8:8991081 n8:3408620
n3:druhVysledku
n19:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
648591
n3:idVysledku
RIV/61989592:15310/02:00001487
n3:jazykVysledku
n5:eng
n3:klicovaSlova
fidelity
n3:klicoveSlovo
n6:fidelity
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[D997BCD46A45]
n3:nazevZdroje
Physical Review A
n3:obor
n9:BH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:projekt
n15:LN00A015
n3:rokUplatneniVysledku
n10:2002
n3:svazekPeriodika
66
n3:tvurceVysledku
Peřina, Jan Fiurášek, Jaromír
n3:zamer
n17:MSM%20153100009
s:issn
1050-2947
s:numberOfPages
8
n14:organizacniJednotka
15310