{
  "abstract": "We study tensor perturbations and quasinormal modes (QNMs) of thick branes in $f(R,T)=R+αT$ gravity. Starting from the background thick brane solutions, we derive the Schrödinger-like equation for gravitational perturbations and construct the corresponding effective potential. The effective potential exhibits a double-barrier structure whose properties depend on the model parameters. We analyze transmission spectra and find good agreement between resonance peaks and the real parts of the quasinormal frequencies. The parameters $b$ and $α$ mainly control the width and height of the potential barriers, respectively. QNMs are extracted using both time-domain evolution and direct integration methods, showing consistent results for low-lying modes. Higher overtones become increasingly difficult to extract due to stronger damping and numerical contamination. Our results indicate that $f(R,T)$ corrections significantly affect both the effective potential and the quasinormal spectrum, providing a possible imprint of modified gravity in braneworld perturbations.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.35096",
  "author_total": 3,
  "authors": [
    {
      "name": "Yu-Peng E"
    },
    {
      "name": "Hai-Long Jia"
    },
    {
      "name": "Chun-Chun Zhu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5an38nx54y9zg.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.35096",
  "fulltext_url": null,
  "id": "5an38nx54y9zg",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.35096",
  "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",
      "gr-qc"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7223954008",
  "pdf_url": "https://arxiv.org/pdf/2610.35096",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5an38nx54y9zg.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.35096",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.35096"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Quasinormal modes of thick branes in $f(R,T)$ gravity",
  "title_text": "Quasinormal modes of thick branes in f(R,T) gravity",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/5an38nx54y9zg",
  "venue": "arXiv",
  "versions": []
}