{
  "annotation_id": "a3918959-ff99-4e04-8401-cf29467928a4",
  "date_created": "2026-03-02T18:02:27.551000Z",
  "date_modified": "2026-03-02T18:02:27.551000Z",
  "file_hash": "054933fe69da0236353c5187e70f001c354cdf5190921ff8767b2ec245bc7ff6",
  "private": false,
  "record": {
    "abstract": "We formulate and prove a de Finetti representation theorem for finitely\nexchangeable states of a quantum system consisting of k infinite-dimensional\nsubsystems. The theorem is valid for states that can be written as the partial\ntrace of a pure state chosen from a family of subsets C_n of the full symmetric\nsubspace for $n$ subsystems. We show that such states become arbitrarily close\nto mixtures of pure power states as n increases. We give a second equivalent\ncharacterization of the family C_n.",
    "arxiv_id": "quant-ph/0606139",
    "authors": [
      "Christian D\u0027Cruz",
      "Tobias J. Osborne",
      "Ruediger Schack"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.98.160406",
    "journal_ref": "Phys. Rev. Lett. 98, 160406 (2007)",
    "title": "A Finite de Finetti Theorem for Infinite-Dimensional Systems",
    "url": "https://arxiv.org/abs/quant-ph/0606139"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2eb07370-26bd-49b3-98a2-dbbfd6cf3391",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}