{
  "annotation_id": "6a91d4af-2907-4637-b50f-7a34a083397d",
  "date_created": "2026-03-02T18:01:52.571000Z",
  "date_modified": "2026-03-02T18:01:52.571000Z",
  "file_hash": "7ca9473f6577b6346f23e35554756b947dc633ffdde6a4f02c878bddc68d1382",
  "private": false,
  "record": {
    "abstract": "The conventional postulate for the probabilistic interpretation of quantum\nmechanics is asymmetric in preparation and measurement, making retrodiction\nreliant on inference by use of Bayes\u0027 theorem. Here, a more fundamental\nsymmetric postulate is presented, from which both predictive and retrodictive\nprobabilities emerge immediately, even where measurement devices more general\nthan those usually considered are involved. It is shown that the new postulate\nis perfectly consistent with the conventional postulate.",
    "arxiv_id": "quant-ph/0207174",
    "authors": [
      "David T. Pegg",
      "Stephen M. Barnett",
      "John Jeffers"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1080/09500340110109412",
    "journal_ref": "J. Mod. Opt. 49, 913, 2002",
    "title": "Quantum theory of preparation and measurement",
    "url": "https://arxiv.org/abs/quant-ph/0207174"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8fceae25-db94-484f-98f1-e9a423f58ec4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}