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  • We propose a protocol implementing optimal partial deterministic quantum teleportation for qubits. This is a teleportation scheme realizing deterministically an optimal 1-->2 asymmetric universal cloning where one imperfect copy of the input state emerges at the sender's station while the other copy emerges at receiver's possibly distant station. The optimality means that the fidelities of the copies saturate the asymmetric cloning inequality. The performance of the protocol relies on the partial deterministic nondemolition Bell measurement that allows us to continuously control the flow of information among the outgoing qubits. We also demonstrate that the measurement is optimal two-qubit operation in the sense of the trade-off between the state disturbance and the information gain.
  • We propose a protocol implementing optimal partial deterministic quantum teleportation for qubits. This is a teleportation scheme realizing deterministically an optimal 1-->2 asymmetric universal cloning where one imperfect copy of the input state emerges at the sender's station while the other copy emerges at receiver's possibly distant station. The optimality means that the fidelities of the copies saturate the asymmetric cloning inequality. The performance of the protocol relies on the partial deterministic nondemolition Bell measurement that allows us to continuously control the flow of information among the outgoing qubits. We also demonstrate that the measurement is optimal two-qubit operation in the sense of the trade-off between the state disturbance and the information gain. (en)
  • Navrhujeme protokol realizující optimální částečnou deterministickou kvantovou teleportaci pro kvantové bity. Je to teleportační schéma realizující deterministicky optimální 1-2 asymetrické univerzální klonování, kde jedna nedokonalá kopie vzniká u odesílatele zatímco druhá kopie vzniká u vzdáleného adresáta. Optimalitou se myslí, že fidelity těchto kopií saturují asymetrickou klonovací nerovnost. Činnost tohoto protokolu spočívá na částečném deterministickém nedemoličním Bellově měření, které umožňuje kontrolovat tok informace mezi výstupními kvantovými bity. Také ukazujeme, že toto měření je optimální operací na dvou kvantových bitech ve smyslu trade-offu mezi narušením stavu a ziskem informace. (cs)
Title
  • Optimal partial deterministic quantum teleportation of qubits
  • Optimal partial deterministic quantum teleportation of qubits (en)
  • Optimální částečná deterministická kvantová teleportace kvantových bitů (cs)
skos:prefLabel
  • Optimal partial deterministic quantum teleportation of qubits
  • Optimal partial deterministic quantum teleportation of qubits (en)
  • Optimální částečná deterministická kvantová teleportace kvantových bitů (cs)
skos:notation
  • RIV/61989592:15310/05:00001853!RIV06-MSM-15310___
http://linked.open.../vavai/riv/strany
  • 022319-1-4
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GP202/03/D239), P(OC P11.003), Z(MSM6198959213)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 534753
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/05:00001853
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • deterministic quantum teleportation (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [12E32F17970A]
http://linked.open...i/riv/nazevZdroje
  • Physical Review A
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 71
http://linked.open...iv/tvurceVysledku
  • Filip, Radim
  • Mišta, Ladislav
http://linked.open...n/vavai/riv/zamer
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 15310
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