{
  "annotation_id": "5af167ce-7b38-45a0-9721-8c537a8ce383",
  "date_created": "2026-03-02T18:02:30.562000Z",
  "date_modified": "2026-03-02T18:02:30.562000Z",
  "file_hash": "17bbdd234e50086dd41e5ba8deb570589567b3bc7a8da0662a8cfc9d5722a364",
  "private": false,
  "record": {
    "abstract": "We study the conditional preparation of single photons based on parametric\ndownconversion, where the detection of one photon from a given pair heralds the\nexistence of a single photon in the conjugate mode. We derive conditions on the\nmodal characteristics of the photon pairs, which ensure that the conditionally\nprepared single photons are quantum-mechanically pure. We propose specific\nexperimental techniques that yield photon pairs ideally suited for\nsingle-photon conditional preparation.",
    "arxiv_id": "quant-ph/0611019",
    "authors": [
      "Alfred B. U\u0027Ren",
      "Christine Silberhorn",
      "Reinhard Erdmann",
      "Konrad Banaszek",
      "Warren P. Grice",
      "Ian A. Walmsley",
      "Michael G. Raymer"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "Las. Phys. 15 146 (2005)",
    "title": "Generation of Pure-State Single-Photon Wavepackets by Conditional   Preparation Based on Spontaneous Parametric Downconversion",
    "url": "https://arxiv.org/abs/quant-ph/0611019"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1d70f194-dcba-4c59-a57a-ac39d0175059",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}