{
  "annotation_id": "f6b8c3fc-adcd-44d3-bde5-0e74df16ccbb",
  "date_created": "2026-03-02T18:01:48.403000Z",
  "date_modified": "2026-03-02T18:01:48.403000Z",
  "file_hash": "d6491a8d35ef8b4a146a3c7437edbe20437c6a843f1593a3b4c45c5233b1074f",
  "private": false,
  "record": {
    "abstract": "A novel single-photon Mach-Zehnder interferometer terminated at two different\nfrequencies realizes the nonlinear frequency conversion of optical quantum\nsuperposition states. The information-preserving character of the relevant\nunitary transformation has been experimentally demonstrated for input qubits\nand ebits. Besides its own intrinsic fundamental interest, the new scheme will\nfind important applications in modern quantum information technology.",
    "arxiv_id": "quant-ph/0201116",
    "authors": [
      "P. Mataloni",
      "G. Giorgi",
      "F. De Martini"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Frequency Hopping in Quantum Interferometry: Efficient Up-Down   Conversion for Qubits and Ebits",
    "url": "https://arxiv.org/abs/quant-ph/0201116"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "633f5686-560b-40d1-b3fa-51fa63131d83",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}