Coherent detection schemes for subcarrier wave continuous variable quantum key distribution

Coherent detection schemes for subcarrier wave continuous variable quantum key distribution

We examine different methods to implement coherent detection in the subcarrier wave quantum key distribution (SCW QKD) systems. For classical wavefields, we present the models describing homodyne-type and heterodyne-type coherent detection schemes needed to extract information from the quadrature ph...

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Veröffentlicht in:arXiv.org 2020-12
Hauptverfasser: Samsonov, Eduard, Goncharov, Roman, Fadeev, Maxim, Zinoviev, Alexandr, Kirichenko, Daniil, Nasedkin, Boris, Kiselev, Alexei, Egorov, Vladimir
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Continuity (mathematics)
Physics - Quantum Physics
Quadratures
Quantum cryptography
Subcarriers
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creator Samsonov, Eduard
Goncharov, Roman
Fadeev, Maxim
Zinoviev, Alexandr
Kirichenko, Daniil
Nasedkin, Boris
Kiselev, Alexei
Egorov, Vladimir
description We examine different methods to implement coherent detection in the subcarrier wave quantum key distribution (SCW QKD) systems. For classical wavefields, we present the models describing homodyne-type and heterodyne-type coherent detection schemes needed to extract information from the quadrature phase-coded multimode signals used in SCW QKD. Practical feasibility of the proposed schemes is corroborated by the experiments.
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subjects Continuity (mathematics)
Physics - Quantum Physics
Quadratures
Quantum cryptography
Subcarriers
title Coherent detection schemes for subcarrier wave continuous variable quantum key distribution
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