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Abstract <p>The authors propose and test a quantum key distribution scheme with independent detection using sideband encoding and a Sagnac interferometer. The scheme provides automatic compensation for phase fluctuations in optical channels and demonstrates stable interference of weak coherent states over a 25-km link with a low error rate, confirming it can be used to build secure quantum networks.</p>

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Investigating a Quantum Key Distribution Scheme with Independent Detection and Sideband Encoding

  • 期刊论文

  • 发表日期：

    2025年12月9日

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  • L. R. Gilyazov,
  • K. S. Melnik,
  • M. E. Sibgatullin,
  • S. A. Moiseev

摘要

Abstract

The authors propose and test a quantum key distribution scheme with independent detection using sideband encoding and a Sagnac interferometer. The scheme provides automatic compensation for phase fluctuations in optical channels and demonstrates stable interference of weak coherent states over a 25-km link with a low error rate, confirming it can be used to build secure quantum networks.