{
  "annotation_id": "76ca8175-b08d-4e03-9aed-7664275e63b6",
  "date_created": "2026-03-02T18:02:30.991000Z",
  "date_modified": "2026-03-02T18:02:30.991000Z",
  "file_hash": "b0944caab22368bc47980b166ad4966bf929d6b0373ed11115759fa853ac1f39",
  "private": false,
  "record": {
    "abstract": "We investigate the optimal estimation of quantum expectation value of a\nphysical observable, which minimizes a mean error with respect to general\nmeasure of deviation, when a finite number of copies of a pure state are\nprepared. If pure sates are uniformly distributed, the minimum value of mean\nerror for any measure of deviation is achieved by projective measurement on\neach copy.",
    "arxiv_id": "quant-ph/0610014",
    "authors": [
      "Minoru Horibe",
      "Akihisa Hayashi",
      "Takaaki Hashimoto"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Optimal estimation of an observable\u0027s expectation value for pure states   for general measure of deviation",
    "url": "https://arxiv.org/abs/quant-ph/0610014"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "30aca078-62dc-4315-a315-732eaffdcad2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}