{
  "annotation_id": "4b0db98a-bb7a-48a8-a7e7-4b98c2479df3",
  "date_created": "2026-03-02T18:02:24.199000Z",
  "date_modified": "2026-03-02T18:02:24.199000Z",
  "file_hash": "eeedf163978542b2b62ef858162bc342341ffc8c7db1e234eec7fc0094430b77",
  "private": false,
  "record": {
    "abstract": "We consider the problem of broadcasting quantum information encoded in the\naverage value of the field from N to M\u003eN copies of mixed states of radiation\nmodes. We derive the broadcasting map that preserves the complex amplitude,\nwhile optimally reducing the noise in conjugate quadratures. We find that from\ntwo input copies broadcasting is feasible, with the possibility of simultaneous\npurification (superbroadcasting). We prove similar results for purification\n(M\u003c=N) and for phase-conjugate broadcasting.",
    "arxiv_id": "quant-ph/0601114",
    "authors": [
      "Giacomo M. D\u0027Ariano",
      "Paolo Perinotti",
      "Massimiliano F. Sacchi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/8/6/099",
    "journal_ref": "New J. Phys. 8 p. 99 (2006)",
    "title": "Superbroadcasting of continuous variables mixed states",
    "url": "https://arxiv.org/abs/quant-ph/0601114"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "515ea7c9-b068-4656-8c4e-3c84f24cf92d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}