{
  "annotation_id": "56228489-1a92-4072-a4f5-3510d64b2636",
  "date_created": "2026-03-02T18:02:40.642000Z",
  "date_modified": "2026-03-02T18:02:40.642000Z",
  "file_hash": "ccf9daf581f2e40ca2dac960f86e4d47cba936fbb74af108f065d25a18f8b4f5",
  "private": false,
  "record": {
    "abstract": "Purification schemes for multi-particle entangled states cannot be treated as\nstraightforward extensions of those for two particles because of the lack of\nsymmetry they possess. We propose purification protocols for a wide range of\nmixed entangled states of many particles. These are useful for understanding\nentanglement, and will be of practical significance in multi-user cryptographic\nschemes or distributed quantum computation and communication. We show that\noperating locally on multi-particle entangled states directly is more efficient\nthan relying on two-particle purification.",
    "arxiv_id": "quant-ph/9712045",
    "authors": [
      "M. Murao",
      "M. B. Plenio",
      "S. Popescu",
      "V. Vedral",
      "P. L. Knight"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.57.R4075",
    "journal_ref": "Phys.Rev. A57 (1998) 4075",
    "title": "Multi-Particle Entanglement Purification Protocols",
    "url": "https://arxiv.org/abs/quant-ph/9712045"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "64a8ef4b-4d26-4b6a-98a0-433d50c7fe15",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}