{
  "annotation_id": "7b0bf191-1926-42a9-833d-99bd97a4e0e4",
  "date_created": "2026-03-02T18:01:59.536000Z",
  "date_modified": "2026-03-02T18:01:59.536000Z",
  "file_hash": "e94c3c1a22a7ec0c19026a64beee727ce656913e095862f155029f36d478bd83",
  "private": false,
  "record": {
    "abstract": "In quantum process tomography, it is possible to express the experimenter\u0027s\nprior information as a sequence of quantum operations, i.e., trace-preserving\ncompletely positive maps. In analogy to de Finetti\u0027s concept of exchangeability\nfor probability distributions, we give a definition of exchangeability for\nsequences of quantum operations. We then state and prove a representation\ntheorem for such exchangeable sequences. The theorem leads to a simple\ncharacterization of admissible priors for quantum process tomography and solves\nto a Bayesian\u0027s satisfaction the problem of an unknown quantum operation.",
    "arxiv_id": "quant-ph/0307198",
    "authors": [
      "Christopher A. Fuchs",
      "Ruediger Schack",
      "Petra F. Scudo"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.69.062305",
    "journal_ref": "Phys. Rev. A 69, 062305 (2004)",
    "title": "A de Finetti Representation Theorem for Quantum Process Tomography",
    "url": "https://arxiv.org/abs/quant-ph/0307198"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b07b8647-f52b-4ec2-9c3c-a2c5646ae5d2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}