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Erschienen in: Quantum Information Processing 11/2015

01.11.2015

Threefold entanglement matching

verfasst von: Luis Roa, Ariana Muñoz, Alice Hutin, Matthias Hecker

Erschienen in: Quantum Information Processing | Ausgabe 11/2015

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Abstract

We address the problem of entanglement matching in the probabilistic teleportation scheme by considering two independent levels of entanglement in the measurement basis. The probability of a successful teleportation has an upper bound which only depends on the amount of entanglement of the quantum channel. However, we found that each entanglement of the measurement basis contributes independently to the success probability as long as it is weaker than the entanglement of the channel. Accordingly, the teleportation process reaches its optimal probability when both entanglements of the measurement basis match the entanglement of the channel. Additionally, we study the probabilistic scheme for extracting an unknown state from a partially known state. We characterize the success probability and the concurrence involved in that process.

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Metadaten
Titel
Threefold entanglement matching
verfasst von
Luis Roa
Ariana Muñoz
Alice Hutin
Matthias Hecker
Publikationsdatum
01.11.2015
Verlag
Springer US
Erschienen in
Quantum Information Processing / Ausgabe 11/2015
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-015-1118-6

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