{
  "annotation_id": "116ea8d7-9d4d-478b-ac26-85b915ad5d10",
  "date_created": "2026-03-02T18:02:23.898000Z",
  "date_modified": "2026-03-02T18:02:23.898000Z",
  "file_hash": "141321ecdbfc95c61c90504428ead13dcb57bb10ff1f068ba9e2e68c53fdd0de",
  "private": false,
  "record": {
    "abstract": "We show that information gain in a qubit measurement is optimal under a Von\nNeumann measurement. For an initially mixed apparatus kept in touch with a\nqubit, the conditions for achieving the equality sign of Holevo bound on the\ninformation accessible to apparatus are derived. These constraints can be\nidentified as the conditions for the optimization of information gain in a\nqubit measurement. At the end, we will generalize the idea to qudit\nmeasurements using a phase-shift gate.",
    "arxiv_id": "quant-ph/0511190",
    "authors": [
      "Nima Lashkari"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Achieving Holevo Bound in Quantum Measurement",
    "url": "https://arxiv.org/abs/quant-ph/0511190"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7070f7e2-6cbc-40e7-b723-f6fde635f3eb",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}