{
  "annotation_id": "9edeae86-711b-42f6-948a-830ab5dcd240",
  "date_created": "2026-03-02T18:02:03.197000Z",
  "date_modified": "2026-03-02T18:02:03.197000Z",
  "file_hash": "da006bc2468ce24a34a5d6d94c04814cd58c342e0d053b6778439195ace3c85f",
  "private": false,
  "record": {
    "abstract": "We demonstrate a multipartite protocol to securely distribute and reconstruct\na quantum state. A secret quantum state is encoded into a tripartite entangled\nstate and distributed to three players. Any two of the three players are able\nto reconstruct the state, whilst individual players obtain nothing. We\ncharacterize this (2,3) threshold quantum state sharing scheme in terms of\nfidelity, signal transfer and reconstruction noise. We demonstrate a fidelity\naveraged over all reconstruction permutations of 0.73, which is achievable only\nusing quantum resources.",
    "arxiv_id": "quant-ph/0311015",
    "authors": [
      "Andrew M. Lance",
      "Thomas Symul",
      "Warwick P. Bowen",
      "Barry C. Sanders",
      "Ping Koy Lam"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.92.177903",
    "journal_ref": "Phys. Rev. Lett. 92, 177903 (2004)",
    "title": "Tripartite Quantum State Sharing",
    "url": "https://arxiv.org/abs/quant-ph/0311015"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dd94869d-aa38-45bb-99a6-dff59a8c8361",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}