{
  "annotation_id": "009ea017-3ac8-4551-9cb9-8df40cae514a",
  "date_created": "2026-03-02T18:01:38.737000Z",
  "date_modified": "2026-03-02T18:01:38.737000Z",
  "file_hash": "6ca4f97e7e58bba5365eac849b30be03ae9e253f361ea1f356081d097b83b0c2",
  "private": false,
  "record": {
    "abstract": "It is known that entanglement swapping can be used to realize entanglement\npurifying. By this way, two particles belong to different non-maximally\nentangled pairs can be projected probabilisticly to a maximally entangled state\nor to a less entangled state. In this report, we show, when the less entangled\nstate is obtained, if a unitary transformation is introduced locally, then a\nmaximally entangled state can be obtained probabilisticly from this less\nentangled state. The total successful probability of our scheme is equal to the\nentanglement of a single pairpurification (if two original pairs are in the\nsame non-maximally entangled states) or to the smaller entanglement of a single\npair purification of these two pairs (if two original pairs are not in the same\nnon-maximally entangled states). The advantage of our scheme is no continuous\nindefinite iterative procedure is needed to achieve optimal purifying.",
    "arxiv_id": "quant-ph/0005125",
    "authors": [
      "Bao-Sen Shi",
      "Yun-Kun Jiang",
      "Guang-Can Guo"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.62.054301",
    "title": "Optimal entanglement purifying via entanglement swapping",
    "url": "https://arxiv.org/abs/quant-ph/0005125"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "55a03f30-2709-4c3f-aea6-9eae5a74cf89",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}