{
  "annotation_id": "e7f17bd2-28a9-46d9-9bf9-1df5c35cd04a",
  "date_created": "2026-03-02T18:02:17.093000Z",
  "date_modified": "2026-03-02T18:02:17.093000Z",
  "file_hash": "3f469995e746eb8867951dc4fdc2ac8a2fd487126bdbcbca3a0ffecc78c8bf08",
  "private": false,
  "record": {
    "abstract": "Controlling the pump beam transverse profile in multimode Hong-Ou-Mandel\ninterference, we generate a \u0027\u0027localized\" two-photon singlet state, in which\nboth photons propagate in the same beam. This type of multi-photon singlet beam\nmay useful in quantum communication to avoid decoherence. We show that although\nthe photons are part of the same beam, they are never in the same plane wave\nmode, which is characterized by spatial antibunching behavior in the plane\nnormal to the propagation direction.",
    "arxiv_id": "quant-ph/0503117",
    "authors": [
      "W. A. T. Nogueira",
      "S. P. Walborn",
      "S. P\u00e1dua",
      "C. H. Monken"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.92.043602",
    "journal_ref": "Physical Review Letters 92 (4): Art. No. 043602 JAN 30 2004",
    "title": "Generation of a two-photon singlet beam",
    "url": "https://arxiv.org/abs/quant-ph/0503117"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5d3d1001-191b-468e-ae8a-d7c9b2a926a4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}