Continuous Variable Quantum Repeaters

We propose a quantum repeater for continuous variable (CV) quantum optical states. Our repeater relies on an error correction protocol for loss on CV states based on CV teleportation and entanglement distillation via noiseless linear amplification. The error correction protocol is concatenated to pr...

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Bibliographic Details
Published inarXiv.org
Main Authors Dias, Josephine, Ralph, Tim
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 14.05.2015
Subjects
Continuity (mathematics)
Distillation
Entanglement
Error correction
Error correction & detection
Repeaters
Teleportation
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Summary:We propose a quantum repeater for continuous variable (CV) quantum optical states. Our repeater relies on an error correction protocol for loss on CV states based on CV teleportation and entanglement distillation via noiseless linear amplification. The error correction protocol is concatenated to preserve the same effective transmission coefficient for the quantum channel over increasing distance. The probability of successful operation of the repeater scales polynomially with distance. However, the protocol is limited by a trade-off between fidelity and probability of success.
ISSN:2331-8422