{
  "abstract": "We propose distributed dual-comb spectroscopy, a quantum-enhanced sensing architecture that simultaneously exploits spatial- and spectral-domain entanglement to improve the extraction of global spectroscopic information across broadband frequency ranges. Our scheme consists of a network of Mach-Zehnder interferometers interrogating spatially separated samples, each driven by a classical frequency comb at the bright port. A single two-mode squeezed frequency comb is distributed through a passive beam-splitter array into $K$ entangled combs, establishing multipartite correlations across sensors while preserving intrinsic spectral entanglement. The protocol is compatible with both heterodyne detection and division detection, and enables parallel estimation of weighted-average absorption features over multiple frequency components. Compared with spatially separable quantum strategies requiring $K$ independently engineered nonclassical comb sources, our approach achieves enhanced signal-to-noise performance using only a single quantum resource distributed across the network. These results establish a scalable route toward broadband distributed quantum spectroscopy with simultaneous spatial and spectral advantage.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.30462",
  "author_total": 4,
  "authors": [
    {
      "name": "Haowei Shi"
    },
    {
      "name": "Kartikeya Arora"
    },
    {
      "name": "Zheshen Zhang"
    },
    {
      "name": "Quntao Zhuang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9hwjnh3cpna3m.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.30462",
  "fulltext_url": null,
  "id": "9hwjnh3cpna3m",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.30462",
  "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",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7223335592",
  "pdf_url": "https://arxiv.org/pdf/2610.30462",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9hwjnh3cpna3m.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:34Z",
      "native_id": "2610.30462",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.30462"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Distributed dual-comb spectroscopy",
  "title_text": "Distributed dual-comb spectroscopy",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:34Z",
  "url": "https://research.draconitic.com/paper/9hwjnh3cpna3m",
  "venue": "arXiv",
  "versions": []
}