{
  "annotation_id": "9c6f9bca-a5cd-4088-b92b-8cc54871b061",
  "date_created": "2026-03-02T18:01:45.399000Z",
  "date_modified": "2026-03-02T18:01:45.399000Z",
  "file_hash": "063b102551138ab51bec7db3c3eac60ed468c4a93eb3dfb7c3b637079820aa89",
  "private": false,
  "record": {
    "abstract": "Secure communication requires message authentication. In this paper we\naddress the problem of how to authenticate quantum information sent through a\nquantum channel between two communicating parties with the minimum amount of\nresources. Specifically, our objective is to determine whether one elementary\nquantum message (a qubit) can be authenticated with a key of minimum length. We\nshow that, unlike the case of classical-message quantum authentication, this is\nnot possible.",
    "arxiv_id": "quant-ph/0108100",
    "authors": [
      "Marcos Curty",
      "David J. Santos",
      "Esther Perez",
      "Priscila Garcia-Fernandez"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.66.022301",
    "journal_ref": "Phys.Rev.A66,022301(2002)",
    "title": "Qubit authentication",
    "url": "https://arxiv.org/abs/quant-ph/0108100"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "567abe5a-0cf5-49c5-af88-40fb278a3966",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}