{
  "annotation_id": "2908a1d5-809d-4dfd-ae67-32f2ac57edfe",
  "date_created": "2026-03-02T18:02:24.083000Z",
  "date_modified": "2026-03-02T18:02:24.083000Z",
  "file_hash": "5abaf8fb454fb8b76c01bc82602af6f834a8d8d263bf4badb9f59d2f9ab5bc54",
  "private": false,
  "record": {
    "abstract": "We propose simple schemes that can perfectly identify projective measurement\napparatus secretly chosen from a finite set. Entanglements are used in these\nschemes both to make possible the perfect identification and to improve the\nefficiency significantly. A brief discussion on the problem of how to\nappropriately define distance measures of measurements is also provided based\non the results of identification.",
    "arxiv_id": "quant-ph/0601090",
    "authors": [
      "Zhengfeng Ji",
      "Yuan Feng",
      "Runyao Duan",
      "Mingsheng Ying"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.96.200401",
    "journal_ref": "Phys. Rev. Lett. 96, 200401 (2006)",
    "title": "Identification and Distance Measures of Measurement Apparatus",
    "url": "https://arxiv.org/abs/quant-ph/0601090"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6013b2fc-e0c7-4323-8314-f57eab24422b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}