{
  "annotation_id": "b63a1aa5-e173-4926-9c6e-10e0ae3348c6",
  "date_created": "2026-03-02T18:01:38.577000Z",
  "date_modified": "2026-03-02T18:01:38.577000Z",
  "file_hash": "fc3533524d804c75a39ad622c3288e359b6192d14b1788643065359111b1119d",
  "private": false,
  "record": {
    "abstract": "We present the first full demonstration of unambiguous state discrimination\nbetween non-orthogonal quantum states. Using a novel free space interferometer\nwe have realised the optimum quantum measurement scheme for two non-orthogonal\nstates of light, known as the Ivanovic-Dieks-Peres (IDP) measurement. We have\nfor the first time gained access to all three possible outcomes of this\nmeasurement. All aspects of this generalised measurement scheme, including its\nsuperiority over a standard von Neumann measurement, have been demonstrated\nwithin 1.5% of the IDP predictions.",
    "arxiv_id": "quant-ph/0007063",
    "authors": [
      "Roger B. M. Clarke",
      "Anthony Chefles",
      "Stephen M. Barnett",
      "Erling Riis"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.63.040305",
    "title": "Experimental Demonstration of Optimal Unambiguous State Discrimination",
    "url": "https://arxiv.org/abs/quant-ph/0007063"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b84aac5d-74ab-4a51-b8c2-75eb97d88c2d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}