{
  "abstract": "The algebraic and environmental characteristics of mixed unitary quantum operations are investigated. It is established that the composition of two uniformly n-mixed unitary channels is itself n-noisy, and this n-noisy property is shown to be an invariant under unitary equivalence. Furthermore, by utilizing majorization and the divisibility of Kraus rank-four unital qubit channels, we demonstrate that any unital qubit channel can be physically simulated using a three-dimensional maximally mixed environment. Together, these results advance the classification and physical realization of noisy quantum channels.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.03894",
  "author_total": 3,
  "authors": [
    {
      "name": "Indu Bala"
    },
    {
      "name": "Preeti Parashar"
    },
    {
      "name": "Swapan Rana"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b217q3aqq55bh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.03894",
  "fulltext_url": null,
  "id": "b217q3aqq55bh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.03894",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "math.OA"
    ],
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.03894",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/b217q3aqq55bh.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:21:25Z",
      "native_id": "2611.03894",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.03894"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.OA",
      "subfield": "analysis-pdes"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Unital qubit channels are $3$-noisy",
  "title_text": "Unital qubit channels are $3$-noisy",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:01Z",
  "url": "https://research.draconitic.com/paper/b217q3aqq55bh",
  "venue": "arXiv",
  "versions": []
}