{
  "abstract": "Can quantum entanglement continue to grow even after the entanglement entropies of subsystems have saturated? We address this question using genuine multi-entropy, which probes multi-partite entanglement structure beyond bipartite entanglement. In a two-sided BTZ black hole, this quantity grows linearly with time after every subsystem entropy of a fixed tripartition has saturated, extending the interval in which entanglement detects Einstein-Rosen bridge growth. The result refines the ER=EPR relation by identifying multi-partite structure invisible to ordinary entanglement entropies. Some spin-chain models and the spatially partitioned Sachdev-Ye-Kitaev (SYK) model exhibit distinct transients, while the late-time plateau values in holography, the SYK model, and Haar-random states share a universal behaviour.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.18225",
  "author_total": 4,
  "authors": [
    {
      "name": "Takanori Anegawa"
    },
    {
      "name": "Akihiro Miyata"
    },
    {
      "name": "Shota Suzuki"
    },
    {
      "name": "Kotaro Tamaoka"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bhbhnd6e81z3x.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.18225",
  "fulltext_url": null,
  "id": "bhbhnd6e81z3x",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.18225",
  "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",
      "cond-mat.stat-mech"
    ],
    [
      "arxiv",
      "gr-qc"
    ],
    [
      "arxiv",
      "hep-th"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7213523365",
  "pdf_url": "https://arxiv.org/pdf/2609.18225",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bhbhnd6e81z3x.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "2609.18225",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.18225"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.stat-mech",
      "subfield": "statistical-nonlinear"
    }
  ],
  "title": "Growing Einstein-Rosen Bridge with Multi-partite Entanglement",
  "title_text": "Growing Einstein-Rosen Bridge with Multi-partite Entanglement",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/bhbhnd6e81z3x",
  "venue": "arXiv",
  "versions": []
}