{
  "abstract": "Imaging astrophysical sources with a multi-station interferometer is intrinsically a multiparameter quantum-estimation problem. {Using tools from multiparameter quantum metrology,} we show that time-resolved repetitive or adaptive measurements in an \\(N\\)-station array suffer a fundamental array-level incompatibility among visibility estimators. Collective measurements, {which coherently process the received starlight across multiple time bins in a single joint readout}, remove the array-size penalty up to an order-unity factor, yielding an asymptotic \\(O(\\sqrt{N})\\) enhancement for the {directional-averaged} SNR of visibility measurement. We then propose a memory-assisted interferometric architecture designed to implement collective readout through coherent storage and joint quantum processing. Imaging simulations and Fisher-information analyses demonstrate that collective measurements improve image reconstruction in near-term arrays and enhance the resolving power of future long-baseline architectures, with pronounced benefits for representative AGN targets such as NGC~4151 and 3C~273. These results highlight collective measurement as a promising building block for future quantum-assisted interferometric arrays for stellar imaging.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.29689",
  "author_total": 4,
  "authors": [
    {
      "name": "Xinyao Guo"
    },
    {
      "name": "Haixing Miao"
    },
    {
      "name": "Zheng Cai"
    },
    {
      "name": "Huan Yang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5tksj1ejg0ez2.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.29689",
  "fulltext_url": null,
  "id": "5tksj1ejg0ez2",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.29689",
  "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",
      "astro-ph.IM"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7204912027",
  "pdf_url": "https://arxiv.org/pdf/2608.29689",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5tksj1ejg0ez2.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2608.29689",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.29689"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.IM",
      "subfield": "instrumentation-methods"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Imaging Stars at the Quantum Compatibility Limit",
  "title_text": "Imaging Stars at the Quantum Compatibility Limit",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/5tksj1ejg0ez2",
  "venue": "arXiv",
  "versions": []
}