{
  "abstract": "We study the confining flux tube in the reconfined phase of trace deformed SU(2) Yang-Mills theory in (2+1) dimensions. Using lattice simulations above the standard deconfinement temperature, we analyze Polyakov-loop correlators and extract the ground state energy of the effective string. We show that the usual Nambu-Goto effective string description, including its standard higher-order corrections, fails to reproduce the data as the trace deformation is increased. Remarkably, deep in the reconfined regime the results are instead accurately described by the Polchinski-Yang rigid-string solution, corresponding to an effective string dominated by an extrinsic-curvature term. We further investigate the transverse profile of the chromo-electric flux tube and find significant deviations from the standard Yang-Mills behavior, including a substantial modification of the intrinsic width. Finally, we present an exploratory study of the phase diagram, finding evidence for a transition from a continuous to a first order reconfinement line as the deformation parameter increases. These results suggest that the reconfined phase realizes a qualitatively different effective-string regime from ordinary confinement.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.20270",
  "author_total": 5,
  "authors": [
    {
      "name": "Claudio Bonati"
    },
    {
      "name": "Michele Caselle"
    },
    {
      "name": "Alessio Negro"
    },
    {
      "name": "Dario Panfalone"
    },
    {
      "name": "Lorenzo Verzichelli"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/et4ccnyq1e1jf.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.20270",
  "fulltext_url": null,
  "id": "et4ccnyq1e1jf",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.20270",
  "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",
      "hep-lat"
    ],
    [
      "arxiv",
      "hep-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2606.20270",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/et4ccnyq1e1jf.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:39Z",
      "native_id": "2606.20270",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.20270"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-lat",
      "subfield": "high-energy"
    }
  ],
  "title": "Confining Flux Tube in the Trace Deformed (2+1) Dimensional SU(2) Gauge Theory",
  "title_text": "Confining Flux Tube in the Trace Deformed (2+1) Dimensional SU(2) Gauge Theory",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:39Z",
  "url": "https://research.draconitic.com/paper/et4ccnyq1e1jf",
  "venue": "arXiv",
  "versions": []
}