{
  "abstract": "The entanglement asymmetry measures how strongly a symmetry is broken inside a subsystem. Analytic results at equilibrium have so far covered free theories and, perturbatively, the critical XXZ chain. We compute the Rényi entanglement asymmetries of a large interval in the gapped, $U(1)$-breaking phase of the interacting XYZ chain. The calculation combines three ingredients. A charged-moment identity, which we prove for fermionic Gaussian and for injective matrix-product ground states, ties the asymmetry to the static susceptibility of the broken charge. A non-conservation sum rule then evaluates the susceptibility from sine-Gordon form factors, its two-kink and one-breather channels providing a lower bound on the universal amplitude. The Baxter--Johnson--Krinsky--McCoy solution supplies the kink mass for different couplings. Infinite-system density-matrix renormalization group simulations built on these masses reproduce the master formula.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.25625",
  "author_total": 1,
  "authors": [
    {
      "name": "Felipe Taha Sant'Ana"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/51g5e07fxfd2a.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.25625",
  "fulltext_url": null,
  "id": "51g5e07fxfd2a",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.25625",
  "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",
      "cond-mat.stat-mech"
    ],
    [
      "arxiv",
      "hep-th"
    ],
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2607.25625",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/51g5e07fxfd2a.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:58Z",
      "native_id": "2607.25625",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.25625"
    }
  ],
  "subjects": [
    {
      "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": "Entanglement asymmetry in the gapped XYZ spin-$\\frac12$ chain",
  "title_text": "Entanglement asymmetry in the gapped XYZ spin-1/2 chain",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:56Z",
  "url": "https://research.draconitic.com/paper/51g5e07fxfd2a",
  "venue": "arXiv",
  "versions": []
}