Quantum Radar Cross Section with two-photon entangled states
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Quantum Physics arXiv:2606.05603 (quant-ph) [Submitted on 4 Jun 2026] Title:Quantum Radar Cross Section with two-photon entangled states Authors:Sunghwa Kang, Jihwan Kim, Zaeill Kim, Duk Y. Kim, Yong Sup Ihn, Su-Yong Lee, Sean Crowe, Stefan Evans, Marcio de Andrade, Joanna Ptasinski View a PDF of the paper titled Quantum Radar Cross Section with two-photon entangled states, by Sunghwa Kang and 9 other authors View PDF HTML (experimental) Abstract:We study two-photon entangled states for quantum radar cross section (QRCS), which is an extension of a single-photon QRCS formula. Since signal-idler entanglement does not provide any enhancement of the QRCS [Brandsema's PhD Thesis (2017)], we focus on signal-signal entanglement and derive the corresponding biphoton QRCS. We show that it can provide an enhancement over the single-photon QRCS and two-photon separable QRCS, where the performance is evaluated for various two-dimensional target geometries in monostatic/bistatic configurations. Furthermore, using the double-Gaussian approximation, we derive QRCS formula for biphoton states with arbitrary degree of entanglement and compute the resulting scattering patterns. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2606.05603 [quant-ph] (or arXiv:2606.05603v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2606.05603 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Su-Yong Lee [view email] [v1] Thu, 4 Jun 2026 02:27:14 UTC (1,317 KB) Full-text links: Access Paper: View a PDF of the paper titled Quantum Radar Cross Section with two-photon entangled states, by Sunghwa Kang and 9 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-06 References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)