{
  "annotation_id": "3c65ed5f-4bd3-489c-956d-e7fcd82c1fab",
  "date_created": "2026-03-02T18:02:23.666000Z",
  "date_modified": "2026-03-02T18:02:23.666000Z",
  "file_hash": "35c593046719b06237254bb84f570a205a3ee9408f161b0faf7a842174798cf0",
  "private": false,
  "record": {
    "abstract": "Realistic single-photon sources do not generate single photons with\ncertainty. Instead they produce statistical mixtures of photons in Fock states\n$\\ket{1}$ and vacuum (noise). We describe how to eliminate the noise in the\noutput of the sources by means of another noisy source or a coherent state and\ncross phase modulation (XPM). We present a scheme which announces the\nproduction of pure single photons and thus eliminates the vacuum contribution.\nThis is done by verifying a XPM related phase shift with a Mach-Zehnder\ninterferometer.",
    "arxiv_id": "quant-ph/0602225",
    "authors": [
      "Thomas Konrad",
      "Michael Nock",
      "Artur Scherer",
      "Juergen Audretsch"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.032331",
    "journal_ref": "Phys. Rev. A 74, 032331 (2006)",
    "title": "Production of heralded pure single photons from imperfect sources using   cross phase modulation",
    "url": "https://arxiv.org/abs/quant-ph/0602225"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dc1e6be4-12f6-44f7-b1d2-2acdc1afc687",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}