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Updated: Jan 17, 2026

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Quantum illumination using polarization-entangled photon pairs for enhanced object detection: comment.

Artur Czerwinski, Jakub J Borkowski

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    |September 23, 2025
    PubMed
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    This comment critiques a study on quantum illumination, finding errors in its mathematical model for photon loss. The paper’s conclusions on detecting low-reflectivity objects are unsupported due to flawed analysis of entanglement robustness.

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    Area of Science:

    • Quantum optics
    • Quantum information theory
    • Photonics

    Background:

    • Quantum illumination utilizes entangled photon pairs for enhanced sensing in noisy conditions.
    • Polarization-entangled photons are explored for object detection applications.

    Purpose of the Study:

    • To critically evaluate the mathematical model presented in Opt. Express 32, 40150 (2024).
    • To identify and correct errors in the treatment of photon loss and its effect on quantum entanglement.

    Main Methods:

    • Analysis of the mathematical framework for photon loss in quantum illumination.
    • Application of established quantum information theory principles to assess entanglement behavior under lossy channels.

    Main Results:

    • Errors were identified in the modeling of photon loss and its impact on polarization entanglement.
    • The claimed robustness of entanglement to photon loss was found to be inconsistent with quantum theory.

    Conclusions:

    • The original study's conclusions regarding the detection of low-reflectivity objects are unsupported due to mathematical inaccuracies.
    • The findings highlight the importance of rigorous theoretical analysis in quantum sensing.