{
  "abstract": "We study how Clifford interactions with a fixed environment determine quantum transmission, in a setting that extends positive discrete quantum convolution . We characterize when Clifford operations on the environment can be replaced by operations on the signal input and the two outputs, and classify the interactions under local Clifford transformations . For pure stabilizer environments, we determine the noiseless, dephasing, and completely depolarizing parts of the channel directly from the interaction and environmental stabilizers, obtaining its quantum and private capacities . This reveals a distinction between interactions: those locally equivalent to positive convolution produce entanglement-breaking channels for every pure stabilizer environment, whereas every other interaction in the class admits noiseless quantum transmission with a suitable pure stabilizer environment . For positive convolution, environmental Clifford transport also allows us to separate the stabilized coordinates of an arbitrary mixed environment . These coordinates carry only a classical label shared by the receiver and environment, so removing them preserves quantum and private capacities . The resulting channel reduction yields a private-capacity bound by the modified relative entropy of magic of the environmental state .",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.30125",
  "author_total": 5,
  "authors": [
    {
      "name": "Xiong Chunhe"
    },
    {
      "name": "Kim Sunho"
    },
    {
      "name": "Zhang Qing-Hua"
    },
    {
      "name": "Fei Shao-Ming"
    },
    {
      "name": "Wu Junde"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6b6sd60p55ydc.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.30125",
  "fulltext_url": null,
  "id": "6b6sd60p55ydc",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.30125",
  "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",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7214319330",
  "pdf_url": "https://arxiv.org/pdf/2609.30125",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-24",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6b6sd60p55ydc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:24:11Z",
      "native_id": "2609.30125",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.30125"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Transport and Channel Normal Forms for Clifford Interactions",
  "title_text": "Transport and Channel Normal Forms for Clifford Interactions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:24:11Z",
  "url": "https://research.draconitic.com/paper/6b6sd60p55ydc",
  "venue": "arXiv",
  "versions": []
}