Optimal Quantum Illumination with Nonlocal Non-Gaussian Operations
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866917492178288640 |
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| author | Palma, Luis D. Zambrano Maleki, Yusef Zubairy, M. Suhail |
| author_facet | Palma, Luis D. Zambrano Maleki, Yusef Zubairy, M. Suhail |
| contents | Enhancing quantum illumination with highly entangled probes remains an active area of research. In this context, non-Gaussian operations provide an effective route for engineering probe states that can surpass the standard two-mode squeezed state (TMSS). In this work, we investigate a specific nonlocal non-Gaussian operation protocol and show that the engineered state using this protocol outperforms previously considered local non-Gaussian scenarios, engineered based on photon catalysis, addition, and subtraction under realistic conditions, including photon loss. Furthermore, by employing a $50{:}50$ beam splitter with photon-number difference detection, we demonstrate a significant enhancement in the signal-to-noise ratio (SNR) for target detection relative to the TMSS. Thus, our protocol exhibits improved performance, highlighting a resource-efficient and experimentally feasible probe for enhanced quantum illumination. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_13747 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Optimal Quantum Illumination with Nonlocal Non-Gaussian Operations Palma, Luis D. Zambrano Maleki, Yusef Zubairy, M. Suhail Quantum Physics Enhancing quantum illumination with highly entangled probes remains an active area of research. In this context, non-Gaussian operations provide an effective route for engineering probe states that can surpass the standard two-mode squeezed state (TMSS). In this work, we investigate a specific nonlocal non-Gaussian operation protocol and show that the engineered state using this protocol outperforms previously considered local non-Gaussian scenarios, engineered based on photon catalysis, addition, and subtraction under realistic conditions, including photon loss. Furthermore, by employing a $50{:}50$ beam splitter with photon-number difference detection, we demonstrate a significant enhancement in the signal-to-noise ratio (SNR) for target detection relative to the TMSS. Thus, our protocol exhibits improved performance, highlighting a resource-efficient and experimentally feasible probe for enhanced quantum illumination. |
| title | Optimal Quantum Illumination with Nonlocal Non-Gaussian Operations |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2605.13747 |