{
  "abstract": "Quasinormal modes (QNMs) govern the ringdown of black holes, yet their physical origin and experimental accessibility remain limited. Here we create an elastic analogue of a black hole using a curved metallic shell engineered to emulate a Schwarzschild-like metric, and directly probe its vibrational dynamics in the time domain. Following impulsive excitation, the elastic system exhibits a clear ringdown response, providing a tangible analogue of black-hole ringing. The underlying modes are flexural vibrations localized near the photon sphere. A reduction of the thin-shell elastic equations yields a photon-sphere effective potential and predicts the dependence of the localized-mode frequencies on azimuthal order. Crucially, they persist even when boundary reflections are strongly suppressed, demonstrating that their confinement is governed by a curvature-induced effective potential rather than by cavity boundaries. This platform enables direct access to quasinormal modes through both their temporal decay and spectral signatures, establishing a direct connection between photon-sphere dynamics and ringdown. More broadly, our results identify curvature-induced trapping as a general mechanism for wave localization and dissipation in open systems.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.30396",
  "author_total": 5,
  "authors": [
    {
      "name": "Jiaoqing Wang"
    },
    {
      "name": "Chenni Xu"
    },
    {
      "name": "Sophia Purow"
    },
    {
      "name": "Sébastien Guenneau"
    },
    {
      "name": "Patrick Sebbah"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d7x4dh1h26sp9.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.30396",
  "fulltext_url": null,
  "id": "d7x4dh1h26sp9",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.30396",
  "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",
      "physics.optics"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7223389761",
  "pdf_url": "https://arxiv.org/pdf/2610.30396",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d7x4dh1h26sp9.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:34Z",
      "native_id": "2610.30396",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.30396"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Black-Hole Ringdown from Photon-Sphere Modes in an Elastic Analogue",
  "title_text": "Black-Hole Ringdown from Photon-Sphere Modes in an Elastic Analogue",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:34Z",
  "url": "https://research.draconitic.com/paper/d7x4dh1h26sp9",
  "venue": "arXiv",
  "versions": []
}