{
  "annotation_id": "fce6adee-530d-4a01-aa66-8c1f65d1b787",
  "date_created": "2026-03-02T18:02:10.165000Z",
  "date_modified": "2026-03-02T18:02:10.165000Z",
  "file_hash": "9aeed277f1667e48248e322901fc4bc634daddd74b21817dddd0654bf9f87fdf",
  "private": false,
  "record": {
    "abstract": "We discuss the accuracy of the estimation of the $n$ identical unknown\nactions of $\\SU(2)$ by using entanglement. This problem has a similar structure\nwith the phase estimation problem, which was discussed by Bu\\v{z}ek, Derka, and\nMassar\\cite{BDM}. The estimation error asymptotically decreases to zero with an\norder of $\\frac{1}{n^2}$ at least.",
    "arxiv_id": "quant-ph/0407053",
    "authors": [
      "Masahito Hayashi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1063/1.1834432",
    "journal_ref": "Physics Letters A, Vol. 354, No. 3, 183-189 (2006)",
    "title": "Parallel Treatment of Estimation of SU(2) and Phase Estimation",
    "url": "https://arxiv.org/abs/quant-ph/0407053"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cb24fc7c-584a-4090-a682-1092ae011978",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}