{
  "abstract": "Genuine multipartite Bell nonlocality (GMNL) aims at capturing correlations between many distant observers that are globally Bell nonlocal. A commonly used definition for GMNL is based on biseparable models constructed from non-signalling correlations. Here we uncover an effect of superactivation of GMNL in this framework. Specifically, by locally wiring together two copies of a biseparable correlation, i.e. not GMNL, one can obtain another correlation that is GMNL. We show that this is possible for any number of parties, and for quantum-realizable correlations. Finally, we show that superactivation of GMNL is also possible at the single-copy level, via a catalytic protocol involving only local wirings. These results question the operational meaning of this definition of GMNL.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.07380",
  "author_total": 3,
  "authors": [
    {
      "name": "Bora Ulu"
    },
    {
      "name": "Mirjam Weilenmann"
    },
    {
      "name": "Nicolas Brunner"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/eb3px2sq7tjya.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.07380",
  "fulltext_url": null,
  "id": "eb3px2sq7tjya",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.07380",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "math-ph"
    ],
    [
      "arxiv",
      "math.MP"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum Mechanics and Applications"
    ]
  ],
  "openalex": "W7212063988",
  "pdf_url": "https://arxiv.org/pdf/2609.07380",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/eb3px2sq7tjya.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2609.07380",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.07380"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math-ph",
      "subfield": "mathematical-physics"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Multi-copy and Catalytic Superactivation of Genuine Multipartite Nonlocality",
  "title_text": "Multi-copy and Catalytic Superactivation of Genuine Multipartite Nonlocality",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:58Z",
  "url": "https://research.draconitic.com/paper/eb3px2sq7tjya",
  "venue": "arXiv",
  "versions": []
}