{
  "annotation_id": "c6add6d2-eb95-422a-bc57-651deb0de737",
  "date_created": "2026-03-02T18:01:48.349000Z",
  "date_modified": "2026-03-02T18:01:48.349000Z",
  "file_hash": "13bb961cac7e83590c565bed5442ff651da62e751e647e090570573b96b8c8fe",
  "private": false,
  "record": {
    "abstract": "The uncertainty relation between the noise operator and the conserved\nquantity leads to a bound for the accuracy of general measurements. The bound\nextends the assertion by Wigner, Araki, and Yanase that conservation laws limit\nthe accuracy of ``repeatable\u0027\u0027, or ``nondisturbing\u0027\u0027, measurements to general\nmeasurements, and improves the one previously obtained by Yanase for spin\nmeasurements. The bound also sets an obstacle to making a small quantum\ncomputer.",
    "arxiv_id": "quant-ph/0112154",
    "authors": [
      "Masanao Ozawa"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.88.050402",
    "journal_ref": "Phys. Rev. Lett. 88, 050402(1--4) (2002).",
    "title": "Conservation laws, uncertainty relations, and quantum limits of   measurements",
    "url": "https://arxiv.org/abs/quant-ph/0112154"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "efba5617-a0b9-4c82-95df-8fb4ede12b2a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}