Coherent detection schemes for subcarrier wave continuous variable quantum key distribution

• URL: http://arxiv.org/abs/2006.16543v2
• Date: Sun, 6 Dec 2020 16:52:54 GMT
• Title: Coherent detection schemes for subcarrier wave continuous variable quantum key distribution
• Authors: Eduard Samsonov, Roman Goncharov, Maxim Fadeev, Alexandr Zinoviev, Daniil Kirichenko, Boris Nasedkin, Alexei Kiselev, and Vladimir Egorov
• Abstract summary: 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.
• Score: 48.87378091233822
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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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