{
  "annotation_id": "f5a578a7-8a58-4482-82c2-e36ad5fbc579",
  "date_created": "2026-03-02T18:02:44.532000Z",
  "date_modified": "2026-03-02T18:02:44.532000Z",
  "file_hash": "04b1c0e27c8599813a73bc257a1d00d6e9122cd6fc97016d801fe7e5eb09a6ca",
  "private": false,
  "record": {
    "abstract": "We study broadcasting of entanglement where we use universal quantum cloners\n(in general less optimal) to perform local cloning operations. We show that\nthere is a lower bound on the fidelity of the universal quantum cloners that\ncan be used for broadcasting. We prove that an entanglement is optimally\nbroadcast only when optimal quantum cloners are used for local copying. We also\nshow that broadcasting of entanglement into more than two entangled pairs is\nforbidden using only local operations.",
    "arxiv_id": "quant-ph/9902073",
    "authors": [
      "Somshubhro Bandyopadhyay",
      "Guruprasad Kar"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.60.3296",
    "journal_ref": "Phys.Rev. A60 (1999) 3296",
    "title": "Broadcasting of entanglement and universal quantum cloners",
    "url": "https://arxiv.org/abs/quant-ph/9902073"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7e377e9d-36d8-4448-bb89-c93bebf34487",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}