{
  "annotation_id": "0209c32e-e6a9-4e30-bb59-bf946791e0d7",
  "date_created": "2026-03-02T18:02:30.149000Z",
  "date_modified": "2026-03-02T18:02:30.149000Z",
  "file_hash": "9e03f730572038c654cf5673af778eb7282dc180350abc2a24cbd15f443eb951",
  "private": false,
  "record": {
    "abstract": "We investigate the multiparticle quantum superposition and the persistence of\nmultipartite entanglement of the quantum superposition generated by the quantum\ninjected high-gain optical parametric amplification of a single photon. The\nphysical configuration based on the optimal universal quantum cloning has been\nadopted to investigate how the entanglement and the quantum coherence of the\nsystem persists for large values of the nonlinear parametric gain g.",
    "arxiv_id": "quant-ph/0609100",
    "authors": [
      "Marco Caminati",
      "Francesco De Martini",
      "Riccardo Perris",
      "Fabio Sciarrino",
      "Veronica Secondi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.062304",
    "journal_ref": "Phys. Rev. A 74, 062304 (2006)",
    "title": "Entanglement, EPR correlations and mesoscopic quantum superposition by   the high-gain quantum injected parametric amplification",
    "url": "https://arxiv.org/abs/quant-ph/0609100"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6efd2c96-afac-4145-83db-4b9d82bb834c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}