{
  "annotation_id": "c1407b29-2f5b-4bd7-aa92-10992d281aa5",
  "date_created": "2026-03-02T18:01:42.377000Z",
  "date_modified": "2026-03-02T18:01:42.377000Z",
  "file_hash": "1018a6498407aa96aa1154c8df9f6756e08443792d117ed4cb18ef9be23058ca",
  "private": false,
  "record": {
    "abstract": "Consider two parties: Alice and Bob and suppose that Bob is given a qubit\nsystem in a quantum state $\\phi$, unknown to him. Alice knows $\\phi$ and she is\nsupposed to convince Bob that she knows $\\phi$ sending some test message. Is it\npossible for her to convince Bob providing him \"zero knowledge\" i. e. no\ninformation about $\\phi$ he has? We prove that there is no \"zero knowledge\"\nprotocol of that kind. In fact it turns out that basing on Alice message, Bob\n(or third party - Eve - who can intercept the message) can synthetize a copy of\nthe unknown qubit state $\\phi$ with nonzero probability. This \"no-go\" result\nputs general constrains on information processing where information {\\it about}\nquantum state is involved.",
    "arxiv_id": "quant-ph/0010048",
    "authors": [
      "Pawel Horodecki",
      "Michal Horodecki",
      "Ryszard Horodecki"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.22331/q-2017-12-23-41",
    "journal_ref": "Quantum 1, 41 (2017)",
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Zero knowledge convincing protocol on quantum bit is impossible",
    "url": "https://arxiv.org/abs/quant-ph/0010048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "00851443-59b1-4a2e-adea-93aec02534c4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}