{
  "annotation_id": "bbc17487-6184-491c-a7dd-c515fd55aaed",
  "date_created": "2026-03-02T18:02:37.041000Z",
  "date_modified": "2026-03-02T18:02:37.041000Z",
  "file_hash": "2ea4c37dddfd52a2c1c2e7e5157daebcb64104506891b7dea28853a041f5d08d",
  "private": false,
  "record": {
    "abstract": "We show that, given a general mixed state for a quantum system, there are no\nphysical means for {\\it broadcasting\\/} that state onto two separate quantum\nsystems, even when the state need only be reproduced marginally on the separate\nsystems. This result generalizes and extends the standard no-cloning theorem\nfor pure states.",
    "arxiv_id": "quant-ph/9511010",
    "authors": [
      "H. Barnum",
      "C. M. Caves",
      "C. A. Fuchs",
      "R. Jozsa",
      "B. Schumacher"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.76.2818",
    "journal_ref": "Phys.Rev.Lett. 76 (1996) 2818-2821",
    "title": "Noncommuting mixed states cannot be broadcast",
    "url": "https://arxiv.org/abs/quant-ph/9511010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "188aa329-5822-4308-93c0-1acb87ef2780",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}