{
  "abstract": "Transverse propulsion changes topological ordering in dense ellipsoidal Quincke rollers. Under an alternating-current electric field, a polar velocity field coexists with perpendicular nematic particle alignment. The system supports integer +1 velocity vortices with radial particle axes and -1 saddle defects. Oppositely charged defects migrate along domain walls and annihilate as polar domains merge. These results identify propulsion direction relative to particle shape as a control parameter for defect textures and collective ordering.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.41463",
  "author_total": 7,
  "authors": [
    {
      "name": "Bao Ying Fan"
    },
    {
      "name": "Lin Liu"
    },
    {
      "name": "Jie Wu"
    },
    {
      "name": "Chen Song"
    },
    {
      "name": "Wen-de Tian"
    },
    {
      "name": "Kang Chen"
    },
    {
      "name": "Tian Hui Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1926dsazh0088.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.41463",
  "fulltext_url": null,
  "id": "1926dsazh0088",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.41463",
  "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",
      "cond-mat.soft"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.41463",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1926dsazh0088.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:21:15Z",
      "native_id": "2610.41463",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.41463"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.soft",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Integer defects in active nematics of ellipsoidal Quincke rollers",
  "title_text": "Integer defects in active nematics of ellipsoidal Quincke rollers",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:51Z",
  "url": "https://research.draconitic.com/paper/1926dsazh0088",
  "venue": "arXiv",
  "versions": []
}