Continuous-variable quantum key distribution with self-reference detection and discrete modulation

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We proposed the optimized continuous-variable quantum key distribution protocol with self-reference and discrete modulation which incorporates the advantages of both self-reference detection scenario and discrete modulation of quantum states. The impact of excess phase noise resulting from the self-reference intradyne detection on the secret key rate has been evaluated. We have comprehensively analyzed the optimized protocol performance and compared it with the other three continuous-variable quantum key distribution protocols proposed so far and confirmed that the optimized protocol that we proposed enables the quantum key distribution over longer distances and immunity against the side-channel attack.

Original languageEnglish (US)
JournalIEEE Journal of Quantum Electronics
DOIs
StateAccepted/In press - Aug 28 2018

Keywords

  • Covariance matrices
  • discrete modulation
  • Modulation
  • Optical detectors
  • optical fiber communication
  • Protocols
  • Pulse measurements
  • Quantum cryptography
  • quantum key distribution (QKD)
  • Security
  • self-reference detection
  • Signal to noise ratio

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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