{
  "abstract": "Symmetry and entanglement are two fundamental concepts in quantum many-body physics. Their interplay is captured by symmetry-resolved entanglement, which decomposes the total entanglement into contributions from different symmetry sectors. Computing symmetry-resolved entanglement in strongly interacting higher-dimensional quantum systems remains challenging. Here, we formulate and implement an estimator-based quantum Monte Carlo (QMC) framework for computing symmetry-resolved Rényi entropies (SRRE) in sign-problem-free interacting lattice systems by measuring disorder (symmetry-twisted) operators in ordinary and replica ensembles and reconstructing SRRE from the corresponding charged moments. We validate the framework in two controlled one-dimensional settings: the transverse-field Ising model (TFIM), for which exact conformal-field-theory predictions are available, and the interacting Heisenberg chain, which tests the U(1) U ( 1 ) symmetry-sector reconstruction and its finite-size behavior. We then apply the method to the two-dimensional TFIM. Within the accessible system sizes and a phenomenological finite-size extrapolation, our data provide numerical evidence consistent with entanglement equipartition at the (2+1) ( 2 + 1 ) D Ising critical point. Our work establishes a practical numerical route to symmetry-resolved entanglement in interacting lattice models and provides a framework for future studies beyond one dimension.",
  "abstract_shown": true,
  "affiliations": [
    "Fudan University",
    "Shanghai Artificial Intelligence Laboratory",
    "Chinese University of Hong Kong",
    "Hefei National Laboratory",
    "Shanghai Research Center for Quantum Sciences",
    "Shanghai Institute for Mathematics and Interdisciplinary Sciences",
    "University of Würzburg",
    "Würzburg-Dresden Cluster of Excellence"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Kuangjie Chen",
      "orcid": "0009-0009-9792-3082"
    },
    {
      "affs": [
        2
      ],
      "name": "Weizhen Jia",
      "orcid": "0000-0002-6268-6496"
    },
    {
      "affs": [
        0,
        3,
        1,
        4
      ],
      "name": "Xiaopeng Li"
    },
    {
      "affs": [
        5,
        6,
        7
      ],
      "name": "René Meyer"
    },
    {
      "affs": [
        2
      ],
      "name": "Jiarui Zhao"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2yd3q5nbnkwne.bib",
  "cited_by": 0,
  "doi": "10.21468/scipostphys.21.4.099",
  "fulltext_url": null,
  "id": "2yd3q5nbnkwne",
  "issns": [
    "2542-4653"
  ],
  "landing_url": "https://scipost.org/10.21468/SciPostPhys.21.4.099",
  "language": null,
  "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": [
    [
      "openalex",
      "3107|Quantum many-body systems"
    ]
  ],
  "openalex": "W7148753150",
  "pdf_url": "https://scipost.org/10.21468/SciPostPhys.21.4.099/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": "Stichting SciPost",
  "ris": "https://research.draconitic.com/paper/2yd3q5nbnkwne.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:57Z",
      "native_id": "10.21468/scipostphys.21.4.099",
      "source": "crossref",
      "url": "https://scipost.org/10.21468/SciPostPhys.21.4.099"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3107|Quantum many-body systems",
      "subfield": "amo"
    }
  ],
  "title": "Detecting symmetry-resolved entanglement: A quantum Monte Carlo approach",
  "title_text": "Detecting symmetry-resolved entanglement: A quantum Monte Carlo approach",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:57Z",
  "url": "https://research.draconitic.com/paper/2yd3q5nbnkwne",
  "venue": "SciPost Physics",
  "versions": []
}