{
  "annotation_id": "b7122db4-5705-40a7-9053-2d336006dc1a",
  "date_created": "2026-03-02T18:02:03.318000Z",
  "date_modified": "2026-03-02T18:02:03.318000Z",
  "file_hash": "59c2cb681d13d139031ed60cdf094e2c9d22a1737be05453f042ac336c4305b7",
  "private": false,
  "record": {
    "abstract": "We present an experiment where two photonic systems of arbitrary dimensions\ncan be entangled. The method is based on spontaneous parametric down conversion\nwith trains of d pump pulses with a fixed phase relation, generated by a\nmode-locked laser. This leads to a photon pair created in a coherent\nsuperposition of $d$ discrete emission times, given by the successive laser\npulses. Entanglement is shown by performing a two-photon interference\nexperiment and by observing the visibility of the interference fringes\nincreasing as a function of the dimension d. Factors limiting the visibility,\nsuch as the presence of multiple pairs in one train, are discussed.",
    "arxiv_id": "quant-ph/0309058",
    "authors": [
      "Hugues de Riedmatten",
      "Ivan Marcikic",
      "Valerio Scarani",
      "Wolfgang Tittel",
      "Hugo Zbinden",
      "Nicolas Gisin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.69.050304",
    "journal_ref": "Phys. Rev. A 69, 050304 (2004)",
    "title": "Tailoring photonic entanglement in high-dimensional Hilbert spaces",
    "url": "https://arxiv.org/abs/quant-ph/0309058"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d8ac9dbc-75ea-4681-9e90-5ed430d373ad",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}