{
  "annotation_id": "47f8019f-eff8-44e5-a971-0e90fd0e0940",
  "date_created": "2026-03-02T18:02:12.577000Z",
  "date_modified": "2026-03-02T18:02:12.577000Z",
  "file_hash": "7b144dfaa3ca4b2ef202012392288255be34b5b0f65616becbe8c9688ca51c4e",
  "private": false,
  "record": {
    "abstract": "We present the first experimental demonstration of the \u0027\u0027optimal\u0027\u0027 and\n\u0027\u0027universal\u0027\u0027 quantum entangling process involving qubits encoded in the\npolarization of single photons. The structure of the \u0027\u0027quantum entangling\nmachine\u0027\u0027 consists of the quantum injected optical parametric amplifier by\nwhich the contextual realization of the 1-\u003e2 universal quantum cloning and of\nthe universal NOT (U-NOT) gate has also been achieved.",
    "arxiv_id": "quant-ph/0410224",
    "authors": [
      "Fabio Sciarrino",
      "Francesco De Martini",
      "Vladimir Buzek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.70.062313",
    "journal_ref": "Phys. Rev. A 70, 062313 (2004)",
    "title": "Realization of the Optimal Universal Quantum Entangler",
    "url": "https://arxiv.org/abs/quant-ph/0410224"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e80d11d7-9f22-44b2-9a7a-c4a962d1c189",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}