{
  "abstract": "We consider a quantum integrated sensing and communication problem over an optical link in which a low-power transmitter simultaneously communicates with a receiver and identifies the range of a defect producing a backscattered signal. We model the system as a lossy thermal-noise bosonic channel, in which the target, modeled as a beamsplitter, affects the timing of the backscattered signal through its location. Motivated by the envisioned deployment of entanglement-enabled quantum networks, we develop two protocols that allow the transmitter to leverage shared Gaussian entanglement, in the form of independent two-mode squeezed vacuum states or coupled three-mode squeezed vacuum states, to assist both sensing and communication. Since entanglement is known to enhance sensing, as demonstrated in quantum illumination, and to increase communication rates through entanglement-assisted communication, the transmitter faces a trade-off in allocating its entanglement resources between the two tasks. Our main results characterize these trade-offs under the proposed protocols in terms of achievable communication rate/sensing error-exponent regions, which outperform time-sharing schemes and demonstrate a quantum advantage.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.04047",
  "author_total": 4,
  "authors": [
    {
      "name": "Tuna Erdoğan"
    },
    {
      "name": "Shi-Yuan Wang"
    },
    {
      "name": "Shang-Jen Su"
    },
    {
      "name": "Matthieu R. Bloch"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7by6th80vqwdk.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.04047",
  "fulltext_url": null,
  "id": "7by6th80vqwdk",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.04047",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.04047",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7by6th80vqwdk.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:21:25Z",
      "native_id": "2611.04047",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.04047"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Gaussian Quantum Integrated Sensing and Communication",
  "title_text": "Gaussian Quantum Integrated Sensing and Communication",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:01Z",
  "url": "https://research.draconitic.com/paper/7by6th80vqwdk",
  "venue": "arXiv",
  "versions": []
}