{
  "annotation_id": "19938288-e7cd-4b87-a915-ebbac9bc6915",
  "date_created": "2026-03-02T18:02:03.596000Z",
  "date_modified": "2026-03-02T18:02:03.596000Z",
  "file_hash": "96d93bfb1fe2433b660713b70f0b7d07faca9b0fec00f6e1953b50ecf3576a27",
  "private": false,
  "record": {
    "abstract": "An entanglement purification scheme for arbitrary unknown(mixed and pure\nnon-maximally) entangled ionic states is proposed by using linear optical\nelements. The main advantage of the scheme is that not only two-ion maximally\nentangled pairs but also four-ion maximally entangled pairs can be extracted\nfrom the less entangled pairs. The scheme is within current technology.",
    "arxiv_id": "quant-ph/0312087",
    "authors": [
      "Ming Yang",
      "Wei Song",
      "Zhuo-Liang Cao"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.012308",
    "journal_ref": "Phys. Rev. A 71, 012308 (2005) (6 pages)",
    "title": "Entanglement purification for arbitrary unknown ionic states via linear   optics",
    "url": "https://arxiv.org/abs/quant-ph/0312087"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a7019aeb-b913-4992-a0e5-cdb4b79563ca",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}