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Managing backscattering noise in Sagnac-loop twin-field quantum key distribution

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Abstract

We propose a signal patterning technique to mitigate backscattering and optimize secure key rates for Sagnac twin-field QKD systems. Simulation results based on experimentally-measured backscattering coefficient yield positive key rates for 250km using APD detectors.

© 2021 The Author(s)

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Poster Presentation

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