Quantum illumination by combination measurements of on-off and photon number resolving detectors

Su-Yong Lee; Dong Hwan Kim; Yonggi Jo; Taek Jeong; Zaeill Kim

doi:10.1117/12.2676092

4 October 2023 Quantum illumination by combination measurements of on-off and photon number resolving detectors

Su-Yong Lee, Dong Hwan Kim, Yonggi Jo, Taek Jeong, Zaeill Kim

Author Affiliations +

Proceedings Volume PC12692, Quantum Communications and Quantum Imaging XXI; PC126920F (2023) https://doi.org/10.1117/12.2676092
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Conference Poster

Abstract

We propose a coincidence measurement scheme of combining on-off and photon number resolving (PNR) detectors to discriminate the presence or absence of a low-reflectivity target using Gaussian entangled states in a strong thermal-noise environment. We show that, for coincidence counting, it is better to take the PNR detector on a signal mode and the on-off detector on an idler mode than to take the other way, which can exhibit a similar performance of the coincidence counting using PNR detectors.

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Su-Yong Lee, Dong Hwan Kim, Yonggi Jo, Taek Jeong, and Zaeill Kim "Quantum illumination by combination measurements of on-off and photon number resolving detectors", Proc. SPIE PC12692, Quantum Communications and Quantum Imaging XXI, PC126920F (4 October 2023); https://doi.org/10.1117/12.2676092

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