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

Murchie, Richard J. and Pritchard, Jonathan D. and Jeffers, John; Deacon, Keith S. and Meyers, Ronald E., eds. (2021) Theoretical comparison of quantum and classical illumination for simple detection-based LIDAR. In: Quantum Communications and Quantum Imaging XIX. Proceedings of SPIE - The International Society for Optical Engineering . SPIE, Bellingham, WA. ISBN 9781510645080

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    Abstract

    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.

    ORCID iDs

    Murchie, Richard J., Pritchard, Jonathan D. ORCID logoORCID: https://orcid.org/0000-0003-2172-7340 and Jeffers, John ORCID logoORCID: https://orcid.org/0000-0002-8573-1675; Deacon, Keith S. and Meyers, Ronald E.