{
  "annotation_id": "4d426693-5bf7-46c5-9689-6814de6d1ef5",
  "date_created": "2026-03-02T18:02:13.806000Z",
  "date_modified": "2026-03-02T18:02:13.806000Z",
  "file_hash": "735c1b50594035e5f7314206d56555a0e4233f78e675fa48fb681f49f5a4e3e2",
  "private": false,
  "record": {
    "abstract": "We propose a family of entanglement witnesses and corresponding positive maps\nthat are not completely positive based on local orthogonal observables. As\napplications the entanglement witness of the $3\\times 3$ bound entangled state\n[P. Horodecki, Phys. Lett. A {\\bf 232}, 333 (1997)] is explicitly constructed\nand a family of $d$-dimensional bound entangled states is designed so that the\nentanglement can be detected by permuting local orthogonal observables. Further\nthe proposed physically not implementable positive maps can be physically\nrealized by measuring a Hermitian correlation matrix of local orthogonal\nobservables.",
    "arxiv_id": "quant-ph/0412220",
    "authors": [
      "Sixia Yu",
      "Nai-le Liu"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.95.150504",
    "title": "Entanglement Detection by Local Orthogonal Observables",
    "url": "https://arxiv.org/abs/quant-ph/0412220"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b6ec26d1-96ff-4d54-93d7-a8cac01a87ee",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}