{
  "annotation_id": "95283e5a-da69-4a83-b650-2689897c793f",
  "date_created": "2026-03-02T18:02:03.636000Z",
  "date_modified": "2026-03-02T18:02:03.636000Z",
  "file_hash": "f173c4facf77ebe8ae0d269a3016d715273e25f04ae2521bfacd47985754a68f",
  "private": false,
  "record": {
    "abstract": "A simultaneous realization of the Universal Optimal Quantum Cloning Machine\n(UOQCM) and of the Universal-NOT gate by a quantum injected optical parametric\namplification (QIOPA), is reported. The two processes, forbidden in their exact\nform for fundamental quantum limitations, are found universal and optimal, and\nthe measured fidelity F\u003c1 is found close to the limit values evaluated by\nquantum theory. This work may enlighten the yet little explored\ninterconnections of fundamental axiomatic properties within the deep structure\nof quantum mechanics.",
    "arxiv_id": "quant-ph/0312124",
    "authors": [
      "Francesco De Martini",
      "Daniele Pelliccia",
      "Fabio Sciarrino"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.92.067901",
    "journal_ref": "Phys. Rev. Lett. 92, 067901 (2004)",
    "title": "Contextual, Optimal and Universal Realization of the Quantum Cloning   Machine and of the NOT gate",
    "url": "https://arxiv.org/abs/quant-ph/0312124"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0fba7fce-3e30-479e-86ac-ea129fb007bb",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}