{
  "abstract": "Electronic states with coexisting Wigner-crystal order can sometimes exhibit a quantum Hall effect over a finite range of electron densities---i.e., exhibit ``extended'' quantum Hall (QH) plateaus in the absence of disorder. Such an extended quantum Hall state can then compete with other QH states over the same density range, allowing a first-order thermal transition between them. Here, we analyze several settings in which the entropy associated with Goldstone modes (e.g., magnons or phonons) or soft gapped modes (e.g., magnetoroton) drives a finite-temperature transition between competing QH regimes. Applying this framework to moiré rhombohedral graphene, we argue that a soft magnetoroton in a fractional quantum anomalous Hall state provides a plausible bulk mechanism for the observed thermal evolution from an extended integer QH to a fractional QH regime.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.16483",
  "author_total": 2,
  "authors": [
    {
      "name": "Kyung-Su Kim"
    },
    {
      "name": "Steven A. Kivelson"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4dcwp94r0rkz7.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.16483",
  "fulltext_url": null,
  "id": "4dcwp94r0rkz7",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.16483",
  "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.mes-hall"
    ],
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "openalex",
      "3107|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W7213403749",
  "pdf_url": "https://arxiv.org/pdf/2609.16483",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4dcwp94r0rkz7.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:12Z",
      "native_id": "2609.16483",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.16483"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Entropy-driven transitions between extended integer and fractional quantum Hall regimes",
  "title_text": "Entropy-driven transitions between extended integer and fractional quantum Hall regimes",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:12Z",
  "url": "https://research.draconitic.com/paper/4dcwp94r0rkz7",
  "venue": "arXiv",
  "versions": []
}