{
  "annotation_id": "874faacf-2247-447c-b410-231601c30b7a",
  "date_created": "2026-03-02T18:02:07.044000Z",
  "date_modified": "2026-03-02T18:02:07.044000Z",
  "file_hash": "8e905b8524c7c4c6ea4aaf700cf3ae0b70b84f225bfc117c2f0924ecd78e4b6b",
  "private": false,
  "record": {
    "abstract": "Based on the two-step protocol [Phys. Rev. A68(03)042317], we propose a\n$(n,n)$-threshold multiparty quantum secret sharing protocol of secure direct\ncommunication. In our protocol only all the sharers collaborate can the\nsender\u0027s secure direct communication message be extracted. We show a variant\nversion of this protocol based on the variant two-step protocol. This variant\nversion can considerably reduce the realization difficulty in experiment. In\ncontrast to the use of multi-particle GHZ states in the case that the sharer\nnumber is larger than 3, the use and identification of Bell states are enough\nin our two protocols disregarding completely the sharer number, hence, our\nprotocols are more feasible in technique.",
    "arxiv_id": "quant-ph/0403221",
    "authors": [
      "Z. J. Zhang"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.physleta.2005.05.049",
    "title": "Multiparty quantum secret sharing of secure direct communication",
    "url": "https://arxiv.org/abs/quant-ph/0403221"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e825c0ac-12ae-4115-9018-b03b91211f25",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}