{
  "annotation_id": "05f8a0f0-6f22-4238-b18c-573eb5ecdf74",
  "date_created": "2026-03-02T18:01:39.100000Z",
  "date_modified": "2026-03-02T18:01:39.100000Z",
  "file_hash": "c1c64124b23c0f87aa32b851c67583c6fa4dbe81f29cc34c46edf8b96c7e15f6",
  "private": false,
  "record": {
    "abstract": "We present the results of generalized measurements of optical polarization\ndesigned to provide one of three or four distinct outcomes. This has allowed us\nto discriminate between nonorthogonal polarization states with an error\nprobability that is close to the minimum allowed by quantum theory. Employing\nthese optimal detection strategies on sets of three (trine) or four (tetrad)\nequiprobable symmetric nonorthogonal polarization states, we obtain a mutual\ninformation that exceeds the maximum value attainable using conventional (von\nNeumann) polarization measurements.",
    "arxiv_id": "quant-ph/0008028",
    "authors": [
      "Roger B. M. Clarke",
      "Vivien M. Kendon",
      "Anthony Chefles",
      "Stephen M. Barnett",
      "Erling Riis",
      "Masahide Sasaki"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.64.012303",
    "journal_ref": "Phys. Rev. A (64) 012303, 2001",
    "title": "Experimental realization of optimal detection strategies for   overcomplete states",
    "url": "https://arxiv.org/abs/quant-ph/0008028"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cdfcbad0-803e-4b3d-852b-bded549fb2fa",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}