{
  "annotation_id": "f613e526-0e8a-4d61-aed5-d409351d88c7",
  "date_created": "2026-03-02T18:02:09.191000Z",
  "date_modified": "2026-03-02T18:02:09.191000Z",
  "file_hash": "842f8971e59ff3d8c8612e0c90b2cf63650953265700d78a626c900ecb9ed198",
  "private": false,
  "record": {
    "abstract": "A single-photon Fock state has been generated by means of conditional\npreparation from a two-photon state emitted in the process of spontaneous\nparametric down-conversion. A recently developed high-frequency homodyne\ntomography technique has been used to completely characterize the Fock state by\nmeans of a pulse-to-pulse analysis of the detectors\u0027 difference photocurrent.\nThe density matrix elements of the generated state have been retrieved with a\nfinal detection efficiency of about 57%. A comparison has been performed\nbetween the phase-averaged tomographic reconstructions of the Wigner function\nas obtained from the measured density-matrix elements and from a direct Abel\ntransform of the homodyne data. The ability of our system to work at the full\nrepetition rate of the pulsed laser (82 MHz) substantially simplifies the\ndetection scheme, allowing for more ``exotic\u0027\u0027 quantum states to be generated\nand analyzed.",
    "arxiv_id": "quant-ph/0406090",
    "authors": [
      "Alessandro Zavatta",
      "Silvia Viciani",
      "Marco Bellini"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.70.053821",
    "journal_ref": "Phys. Rev. A 70, 053821 (2004)",
    "title": "Tomographic reconstruction of the single-photon Fock state by   high-frequency homodyne detection",
    "url": "https://arxiv.org/abs/quant-ph/0406090"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "489b0bd3-9e1d-4a24-a374-971cceb2b990",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}