{
  "abstract": "The quantum switch is a basic network primitive that allows one to connect multiple nodes in a quantum network via a central node. We show that the same functionality can be achieved with a different geometry that does not rely on a powerful and large central unit, but instead utilizes evenly distributed resources. This approach is resilient against node failures. We provide a nested construction with logarithmically many qubits per node and a total of O(nłog n)O(nlogn) Bell pairs, in contrast to other distributed approaches based on pre-shared entanglement that scale as O(n2). The construction achieves fully flexible pairwise connectivity, where the shared resource state can be locally transformed into n/2 arbitrarily distributed Bell states. We also present a graph state variant with just one qubit per node, which allows one to generate \\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$O(n/{\\log }^{2}n)$$\\end{document}O(n/log2n) Bell pairs.",
  "abstract_shown": true,
  "affiliations": [
    "Institut für Theoretische Physik, Universität Innsbruck, Innsbruck, Austria"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Jorge Miguel-Ramiro"
    },
    {
      "affs": [
        0
      ],
      "name": "Maria Flors Mor-Ruiz"
    },
    {
      "affs": [
        0
      ],
      "name": "Wolfgang Dür"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/634np6mgvvtnc.bib",
  "cited_by": 0,
  "doi": "10.1038/s41534-026-01317-9",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13719507/",
  "id": "634np6mgvvtnc",
  "issns": [
    "2056-6387"
  ],
  "landing_url": "https://doi.org/10.1038/s41534-026-01317-9",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Article"
    ],
    [
      "openalex",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7167583328",
  "pdf_url": "https://www.nature.com/articles/s41534-026-01317-9_reference.pdf",
  "pmcid": "PMC13719507",
  "pmid": "42964153",
  "published": "2026-07-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/634np6mgvvtnc.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:23:27Z",
      "native_id": "PMC13719507",
      "source": "pmc",
      "url": "https://doi.org/10.1038/s41534-026-01317-9"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "issn:2056-6387",
      "subfield": "quantum"
    }
  ],
  "title": "Universal nested quantum switch",
  "title_text": "Universal nested quantum switch",
  "type": "peer-reviewed",
  "updated_at": "2026-11-03T12:20:33Z",
  "url": "https://research.draconitic.com/paper/634np6mgvvtnc",
  "venue": "Npj Quantum Information",
  "versions": []
}