Advanced techniques for free-space optical quantum cryptography over water

Alexander D. Hill, Bradley Christensen, Paul G Kwiat

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Free-space quantum key distribution (QKD) over water (e.g., ship to ship) may be limited by ship motion and atmospheric effects, such as mode distortion and beam wander due to turbulence. We report on a technique which reduces noise by excluding spatial modes which are less likely to contain QKD signal photons and experimentally demonstrate an improvement in QKD key generation rates in various noise and turbulence regimes.

Original languageEnglish (US)
Title of host publicationFree-Space Laser Communication and Atmospheric Propagation XXVIII
EditorsDon M. Boroson, Hamid Hemmati
PublisherSPIE
ISBN (Electronic)9781628419740
DOIs
StatePublished - Jan 1 2016
EventFree-Space Laser Communication and Atmospheric Propagation XXVIII - San Francisco, United States
Duration: Feb 15 2016Feb 16 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9739
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherFree-Space Laser Communication and Atmospheric Propagation XXVIII
CountryUnited States
CitySan Francisco
Period2/15/162/16/16

Keywords

  • Quantum cryptography
  • quantum key distribution
  • turbulence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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