{
  "annotation_id": "6883b9d9-b438-4968-90c2-6275d8584674",
  "date_created": "2026-03-02T18:01:49.075000Z",
  "date_modified": "2026-03-02T18:01:49.075000Z",
  "file_hash": "af95b64775fdfdd62fd35d970ddd66b9c65d7527a1afe19c73f92813cef6cf31",
  "private": false,
  "record": {
    "abstract": "We present the optimal measurement strategy for distinguishing between three\nquantum states exhibiting a mirror symmetry. The three states live in a\ntwo-dimensional Hilbert space, and are thus overcomplete. By mirror symmetry we\nunderstand that the transformation {|+\u003e -\u003e |+\u003e, |-\u003e -\u003e -|-\u003e} leaves the set of\nstates invariant. The obtained measurement strategy minimizes the error\nprobability. An experimental realization for polarized photons, realizable with\ncurrent technology, is suggested.",
    "arxiv_id": "quant-ph/0201074",
    "authors": [
      "Erika Andersson",
      "Stephen M. Barnett",
      "Claire R. Gilson",
      "Kieran Hunter"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.65.052308",
    "journal_ref": "Phys. Rev. A 65, 052308 (2002)",
    "title": "Minimum-error discrimination between three mirror-symmetric states",
    "url": "https://arxiv.org/abs/quant-ph/0201074"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "74cb686e-2f1c-4f97-97bd-632d21c44cfc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}