{
  "annotation_id": "42a9274a-4583-43d4-8654-c87c44e620cc",
  "date_created": "2026-03-02T18:01:42.459000Z",
  "date_modified": "2026-03-02T18:01:42.459000Z",
  "file_hash": "fdeb231055aa7a5393a8c61618caae31a216bd75b44d3399cca46e97d4d566be",
  "private": false,
  "record": {
    "abstract": "The author studies the Cram\\\u0027{e}r-Rao type bound by a linear programming\napproach. By this approach, he found a necessary and sufficient condition that\nthe Cram\\\u0027{e}r-Rao type bound is attained by a random measurement. In a spin\n1/2 system, this condition is satisfied.",
    "arxiv_id": "quant-ph/0102120",
    "authors": [
      "Masahito Hayashi"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "A Linear Programming Approach to Attainable Cram\\\u0027{e}r-Rao type Bounds   and Randomness Condition II",
    "url": "https://arxiv.org/abs/quant-ph/0102120"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9d31b8e6-001e-4939-9f9d-d4bb439db625",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}