Theoretical comparison of quantum and classical illumination for simple detection-based LIDAR

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Use of non-classical light in a quantum illumination scheme provides an advantage over classical illumination when used for LIDAR with a simple and realistic detection scheme based on Geiger-mode single photon detectors. Here we provide an analysis that accounts for the additional information gained when detectors do not fire that is typically neglected and show an improvement in performance of quantum illumination. Moreover, we provide a theoretical framework quantifying performance of both quantum and classical illumination for simple target detection, showing parameters for which a quantum advantage exists. Knowledge of the regimes that demonstrate a quantum advantage will inform where possible practical quantum LIDAR utilising non-classical light could be realised.
Original languageEnglish
Title of host publicationQuantum Communications and Quantum Imaging XIX
Subtitle of host publicationProceedings Volume 11835
EditorsKeith S. Deacon, Ronald E. Meyers
Place of PublicationBellingham, WA
ISBN (Electronic)9781510645080
Publication statusPublished - 1 Aug 2021

Publication series

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


  • quantum illumination
  • classical illumination


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