{
  "annotation_id": "700db522-7817-45fd-acec-048b35877b82",
  "date_created": "2026-03-02T18:02:13.522000Z",
  "date_modified": "2026-03-02T18:02:13.522000Z",
  "file_hash": "747870805154c6326647b668e1e5fc3e096186ea51196e760b0e8b3bc4a3a593",
  "private": false,
  "record": {
    "abstract": "Multi-dimensional entangled states have been proven to be more powerful in\nsome quantum information process. In this paper, down-converted photons from\nspontaneous parametric down conversion(SPDC) are used to engineer\nmulti-dimensional entangled states. A kind of multi-degree multi-dimensional\nGreenberger-Horne-Zeilinger(GHZ) state can also be generated. The\nhyper-entangled photons, which are entangled in energy-time, polarization and\norbital angular momentum (OAM), is proved to be useful to increase the\ndimension of systems and investigate higher-dimensional entangled states.",
    "arxiv_id": "quant-ph/0502003",
    "authors": [
      "Xi-Feng Ren",
      "Guo-Ping Guo",
      "Jian Li",
      "Chuan-Feng Li",
      "Guang-Can Guo"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0256-307X/23/3/008",
    "title": "Engineering of multi-dimensional entangled states of photon pairs using   hyper-entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0502003"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "259bd150-ede4-4cf7-86f7-921f907b7883",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}