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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F14%3A33149542%21RIV15-MSM-15310___
rdf:type
n14:Vysledek skos:Concept
rdfs:seeAlso
http://journals.aps.org/pra/pdf/10.1103/PhysRevA.89.062322
dcterms:description
We demonstrate that a phase-independent quantum amplifier of a polarization qubit is a complementary amplifier of the heralded qubit amplifier [N. Gisin, S. Pironio, and N. Sangouard, Phys. Rev. Lett. 105, 070501 (2010)]. It employs the multifunctional cloner in the 1 -} 2 copying regime, capable of providing approximate copies of qubits given by various probability distributions, and is optimized for distributions with axial symmetry. Direct applications of the proposed solution are possible in quantum technologies, doubling the range where quantum information is coherently broadcast. It also outperforms natural nonlinear amplifiers that use stimulated emission in bulk nonlinear materials. We consider the amplifier to be an important tool for amplifying quantum information sent via quantum channels with phase-independent damping. We demonstrate that a phase-independent quantum amplifier of a polarization qubit is a complementary amplifier of the heralded qubit amplifier [N. Gisin, S. Pironio, and N. Sangouard, Phys. Rev. Lett. 105, 070501 (2010)]. It employs the multifunctional cloner in the 1 -} 2 copying regime, capable of providing approximate copies of qubits given by various probability distributions, and is optimized for distributions with axial symmetry. Direct applications of the proposed solution are possible in quantum technologies, doubling the range where quantum information is coherently broadcast. It also outperforms natural nonlinear amplifiers that use stimulated emission in bulk nonlinear materials. We consider the amplifier to be an important tool for amplifying quantum information sent via quantum channels with phase-independent damping.
dcterms:title
Efficient amplification of photonic qubits by optimal quantum cloning Efficient amplification of photonic qubits by optimal quantum cloning
skos:prefLabel
Efficient amplification of photonic qubits by optimal quantum cloning Efficient amplification of photonic qubits by optimal quantum cloning
skos:notation
RIV/61989592:15310/14:33149542!RIV15-MSM-15310___
n3:aktivita
n18:I n18:P
n3:aktivity
I, P(ED2.1.00/03.0058), P(EE2.3.20.0017), P(GP13-31000P)
n3:cisloPeriodika
6
n3:dodaniDat
n16:2015
n3:domaciTvurceVysledku
n5:4646347 n5:2344076 Bartkiewicz, Karol
n3:druhVysledku
n19:J
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
13850
n3:idVysledku
RIV/61989592:15310/14:33149542
n3:jazykVysledku
n13:eng
n3:klicovaSlova
optimal quantum cloning, cryptography, qubit, phase-independent quantum amplifier
n3:klicoveSlovo
n6:optimal%20quantum%20cloning n6:qubit n6:cryptography n6:phase-independent%20quantum%20amplifier
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[0089AB93C17B]
n3:nazevZdroje
Physical Review A
n3:obor
n20:BH
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
5
n3:projekt
n17:ED2.1.00%2F03.0058 n17:EE2.3.20.0017 n17:GP13-31000P
n3:rokUplatneniVysledku
n16:2014
n3:svazekPeriodika
89
n3:tvurceVysledku
Stobińska, Magdalena Bartkiewicz, Karol Soubusta, Jan Černoch, Antonín Lemr, Karel
n3:wos
000338363700007
s:issn
1050-2947
s:numberOfPages
10
n11:doi
10.1103/PhysRevA.89.062322
n15:organizacniJednotka
15310