{
  "abstract": "Multicomponent order can melt in stages, leaving a composite order after its primary constituents become short ranged. We study this possibility for commensurate three-$Q$ loop-current order on the kagome lattice. Large-scale cluster and parallel-tempering Monte Carlo simulations reveal direct and two-stage melting regimes in an effective fixed-amplitude sign model. In the latter regime, translation-sector domain walls proliferate before chirality-changing walls, restoring lattice translational symmetry while preserving long-range time-reversal-odd order. The primary $M$-point correlations are short ranged in this intermediate phase. The two-stage regime begins when the lowest-energy chirality-changing wall is only about $12$--$13\\%$ more costly than a same-chirality translation wall. Finite-size scaling of a stable amplitude-resolved Ginzburg--Landau theory shows that the phase survives amplitude relaxation. Our results establish a quantitative domain-wall criterion for vestigial loop-current order and a fluctuation route to time-reversal symmetry breaking without long-range loop-current Bragg order. This separation provides a possible thermodynamic framework for time-reversal-odd responses recently reported above the critical temperature for conventional charge-density-wave ordering in kagome metals.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.19618",
  "author_total": 3,
  "authors": [
    {
      "name": "Yin Shi"
    },
    {
      "name": "Xuande Bu"
    },
    {
      "name": "Sheng Meng"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/51gxyf02tna05.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.19618",
  "fulltext_url": null,
  "id": "51gxyf02tna05",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.19618",
  "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.str-el"
    ],
    [
      "openalex",
      "3104|Advanced Condensed Matter Physics"
    ]
  ],
  "openalex": "W7213589984",
  "pdf_url": "https://arxiv.org/pdf/2609.19618",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/51gxyf02tna05.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:28:36Z",
      "native_id": "2609.19618",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.19618"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Vestigial chirality from fluctuating loop currents on the kagome lattice",
  "title_text": "Vestigial chirality from fluctuating loop currents on the kagome lattice",
  "type": "preprint",
  "updated_at": "2026-10-30T12:28:36Z",
  "url": "https://research.draconitic.com/paper/51gxyf02tna05",
  "venue": "arXiv",
  "versions": []
}