{
  "abstract": "Perfectly matching local outcomes need not constitute a nondisturbing shared classical record. For finite-dimensional multipartite states, we prove that nontrivial exact records are equivalent to a spectrum sharing structure with a unique finest decomposition into locally distinguishable sectors, where entanglement may persist. For a fixed complete pointer, exact sharing is equivalent to strong quantum Darwinism together with global nondisturbance, while spectrum broadcast structure additionally requires conditional independence. Arbitrarily weak full-rank admixtures eliminate exact sharing, but two-sided distance bounds quantify robustness through disturbance and disagreement, while information bounds connect accurate local readouts to observer consensus.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.05955",
  "author_total": 1,
  "authors": [
    {
      "name": "Jie Gu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2f1x7dzq0pkne.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.05955",
  "fulltext_url": null,
  "id": "2f1x7dzq0pkne",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.05955",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.05955",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2f1x7dzq0pkne.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T15:20:56Z",
      "native_id": "2611.05955",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.05955"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "The Structure of Shared Classical Facts in Quantum Systems",
  "title_text": "The Structure of Shared Classical Facts in Quantum Systems",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:19Z",
  "url": "https://research.draconitic.com/paper/2f1x7dzq0pkne",
  "venue": "arXiv",
  "versions": []
}