{
  "annotation_id": "0c3e0167-119d-443c-813c-c00d60142c52",
  "date_created": "2026-03-02T18:02:44.914000Z",
  "date_modified": "2026-03-02T18:02:44.914000Z",
  "file_hash": "b2ef3e13c008e2e06e54212ced01558920c48089fe00bec30b48ecdec8ed000c",
  "private": false,
  "record": {
    "abstract": "Positive operator valued measurements on a finite number of N identically\nprepared systems of arbitrary spin J are discussed. Pure states are\ncharacterized in terms of Bloch-like vectors restricted by a SU(2 J+1)\ncovariant constraint. This representation allows for a simple description of\nthe equations to be fulfilled by optimal measurements. We explicitly find the\nminimal POVM for the N=2 case, a rigorous bound for N=3 and set up the analysis\nfor arbitrary N.",
    "arxiv_id": "quant-ph/9904056",
    "authors": [
      "A. Acin",
      "J. I. Latorre",
      "P. Pascual"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.61.022113",
    "journal_ref": "Phys.Rev. A61 (2000) 22113",
    "title": "Optimal generalized quantum measurements for arbitrary spin systems",
    "url": "https://arxiv.org/abs/quant-ph/9904056"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dc35c96c-29db-455c-abe0-353cc814d806",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}