{
  "annotation_id": "9d1eb71c-ac84-459c-b033-ffcb26569af4",
  "date_created": "2026-03-02T18:01:52.628000Z",
  "date_modified": "2026-03-02T18:01:52.628000Z",
  "file_hash": "8cb8de6241ed5ede1714ff9f9236525769c723e5f482f50544ee85b07321a672",
  "private": false,
  "record": {
    "abstract": "The generation of pulsed polarization entangled photon pair has been realized\nusing type-I phase matching in the spontaneous parametirc downconversion\nprocess in a space cascaded two-crystal geometry. The optical axes of the\ncrystal are aligned in such a way that the horizontal polarization photon pair\nis produced from up crystal, and the vertical polarization photon pair is\nproduced from down crystal. These two processes are simultaneous, but are\nseparable in space. We get the high entangled polarization photon pair by using\nthe single mode fiber to erase the spatial information between these two\nprocesses. This photon pair exhibits more than 86% high-visibility quantum\ninterference for polarization variable without the narrowband filter and\ntemporal compensation.",
    "arxiv_id": "quant-ph/0209031",
    "authors": [
      "Bao-Sen Shi",
      "Akihisa Tomita"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.67.043804",
    "title": "Generation of pulsed polarization entangled photon pair via a space   cascaded two-crystal geometry",
    "url": "https://arxiv.org/abs/quant-ph/0209031"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c101174c-29ba-4b9d-a119-ace1406fb521",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}