{
  "annotation_id": "f4e928ff-debb-4380-9879-53389db2a7d2",
  "date_created": "2026-03-02T18:01:45.981000Z",
  "date_modified": "2026-03-02T18:01:45.981000Z",
  "file_hash": "9eff7b154acc818f26633b7e1ebfa82fe7a31e71e8f1641761c94d3de1aca1e6",
  "private": false,
  "record": {
    "abstract": "A theory of spontaneous parametric down-conversion, which gives rise to a\nquantum state that is entangled in multiple parameters, such as\nthree-dimensional wavevector and polarization, allows us to understand the\nunusual characteristics of fourth-order quantum interference in many\nexperiments, including ultrafast type-II parametric down-conversion, the\nspecific example illustrated in this paper. The comprehensive approach provided\nhere permits the engineering of quantum states suitable for quantum information\nschemes and new quantum technologies.",
    "arxiv_id": "quant-ph/0110154",
    "authors": [
      "Mete Atature",
      "Giovanni Di Giuseppe",
      "Matthew D. Shaw",
      "Alexander V. Sergienko",
      "Bahaa E. A. Saleh",
      "Malvin C. Teich"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.65.023808",
    "journal_ref": "Phys. Rev. A 65, 023808 (2002).",
    "title": "Multi-Parameter Entanglement in Femtosecond Parametric Down-Conversion",
    "url": "https://arxiv.org/abs/quant-ph/0110154"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1a811d73-2092-4633-9119-c752f9ed1696",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}