{
  "abstract": "The Barnett effect refers to the spontaneous magnetization or polarization of rotating matter via spin-orbit coupling, a fundamental phenomenon observed across a multitude of physical systems down to atomic scales. Here, we demonstrate that this effect extends to subatomic regimes within relativistic heavy-ion collisions, where the most vortical fluid ever created in terrestrial laboratories is produced and the orbital angular momentum is transferred to emitted hadrons via spin-vorticity coupling. By performing transport simulations spanning a broad energy range, we discover a nearly-linear scaling relation between the global spin polarization of $Λ$ hyperons and the source tilt angle extracted via two-pion femtoscopic correlations. This scaling reveals that global $Λ$ polarization induced by the local vorticity field is modulated by the inclined geometry of the produced strongly-interacting nuclear matter in these collisions. Supported by existing experimental measurements, our results unravel a geometry-modulated Barnett-like effect at the femtometre ($10^{-15}$ m) scale.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.35310",
  "author_total": 6,
  "authors": [
    {
      "name": "Dai-Neng Liu"
    },
    {
      "name": "Kai-Jia Sun"
    },
    {
      "name": "Jan Steinheimer"
    },
    {
      "name": "Jin-Hui Chen"
    },
    {
      "name": "Yu-Gang Ma"
    },
    {
      "name": "Marcus Bleicher"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dke6mn1h8dek6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.35310",
  "fulltext_url": null,
  "id": "dke6mn1h8dek6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.35310",
  "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",
      "hep-ph"
    ],
    [
      "arxiv",
      "nucl-th"
    ],
    [
      "openalex",
      "3106|High-Energy Particle Collisions Research"
    ]
  ],
  "openalex": "W7223842242",
  "pdf_url": "https://arxiv.org/pdf/2610.35310",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dke6mn1h8dek6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.35310",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.35310"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "A Barnett-Like Effect in Relativistic Heavy-Ion Collisions",
  "title_text": "A Barnett-Like Effect in Relativistic Heavy-Ion Collisions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/dke6mn1h8dek6",
  "venue": "arXiv",
  "versions": []
}