{
  "annotation_id": "93e78bc7-f7f5-4179-87cc-9809b6661c60",
  "date_created": "2026-03-02T18:02:06.351000Z",
  "date_modified": "2026-03-02T18:02:06.351000Z",
  "file_hash": "090f43ecf4fdde83d162992867f53f68ab59083419b19a0a16edf99c43543419",
  "private": false,
  "record": {
    "abstract": "We prove that any multiple-copy entanglement transformation [S.\nBandyopadhyay, V. Roychowdhury, and U. Sen, Phys. Rev. A \\textbf{65}, 052315\n(2002)] can be implemented by a suitable entanglement-assisted local\ntransformation [D. Jonathan and M. B. Plenio, Phys. Rev. Lett. \\textbf{83},\n3566 (1999)]. Furthermore, we show that the combination of multiple-copy\nentanglement transformation and the entanglement-assisted one is still\nequivalent to the pure entanglement-assisted one. The mathematical structure of\nmultiple-copy entanglement transformations then is carefully investigated. Many\ninteresting properties of multiple-copy entanglement transformations are\npresented, which exactly coincide with those satisfied by the\nentanglement-assisted ones. Most interestingly, we show that an arbitrarily\nlarge number of copies of state should be considered in multiple-copy\nentanglement transformations.",
    "arxiv_id": "quant-ph/0404148",
    "authors": [
      "Runyao Duan",
      "Yuan Feng",
      "Xin Li",
      "Mingsheng Ying"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.042319",
    "journal_ref": "Phys. Rev. A 71, 042319 (2005)",
    "title": "Multiple-copy entanglement transformation and entanglement catalysis",
    "url": "https://arxiv.org/abs/quant-ph/0404148"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e289122b-66c5-4ed2-94d5-d2bfe3eb5405",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}