{
  "annotation_id": "40d6457d-71b1-4d62-bc14-158b344e0c4a",
  "date_created": "2026-03-02T18:02:20.240000Z",
  "date_modified": "2026-03-02T18:02:20.240000Z",
  "file_hash": "f0054749e80f59baa20b88728d9de7acf53b22dbb882575a249373943bbf599d",
  "private": false,
  "record": {
    "abstract": "Formalism of discrete noncommutative Fourier transform is developed and\napplied to the study of Weyl-covariant channels. We then extend a result in\nquant-ph/0509126 concerning a bound of the maximal output 2-norm of a\nWeyl-covariant channel. A class of channels which attain the bound is\nintroduced, for which the multiplicativity of the maximal output 2-norm is\nproven. Complementary channels are described which share the multiplicativity\nproperties with the Weyl-covariant channels.",
    "arxiv_id": "quant-ph/0510148",
    "authors": [
      "M. Fukuda",
      "A. S. Holevo"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "On Weyl-covariant channels",
    "url": "https://arxiv.org/abs/quant-ph/0510148"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b26150f3-f35a-4cea-b6d9-c75b0ab5d235",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}