{
  "annotation_id": "012ff607-247e-4ddc-ac33-de587390c645",
  "date_created": "2026-03-02T18:02:10.010000Z",
  "date_modified": "2026-03-02T18:02:10.010000Z",
  "file_hash": "e539349823a4f73eb335f4c8bf1011df85630f3d52205ac94615c00d5fdc1719",
  "private": false,
  "record": {
    "abstract": "We consider bistochastic quantum channels generated by unitary\nrepresentations of the discret group. The proof of the additivity conjecture\nfor the quantum depolarizing channel $\\Phi$ based on the decreasing property of\nthe relative entropy is given. We show that the additivity conjecture is true\nfor the channel $\\Xi =\\Psi \\circ \\Phi $, where $\\Psi $ is the phase damping.",
    "arxiv_id": "quant-ph/0408004",
    "authors": [
      "G. G. Amosov"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "Probl. Inf. Transm. 42 (2006) no.2, 69-76",
    "title": "Remark on the additivity conjecture for the quantum depolarizing channel",
    "url": "https://arxiv.org/abs/quant-ph/0408004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ad0c3cc1-3061-4192-bc25-288e39efcca7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}