{
  "abstract": "Free-surface water waves provide a macroscopic platform in which topological localization can be measured through surface-elevation fields. Higher-order topological phases offer a route to localizing wave modes at structural corners, yet their experimental realization in water-wave systems remains largely unexplored. Here, we experimentally demonstrate a water-wave higher-order topological crystal, where surface waves are confined to structural corners and spectrally identified through measured free-surface responses. Bulk band analysis and finite-system simulations predict topological edge and corner states in the designed structure, while frequency-resolved surface-elevation measurements confirm the corresponding localized modes. The measured spectra and field distributions reveal pronounced in-gap corner localization consistent with the predicted higher-order topological modes. These results establish surface water waves as a directly measurable platform for higher-order topological physics, enabling spatial localization and spectral characterization of hydrodynamic wave modes.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.01924",
  "author_total": 7,
  "authors": [
    {
      "name": "Jiayin Zhao"
    },
    {
      "name": "Yifan Liu"
    },
    {
      "name": "Jidong Song"
    },
    {
      "name": "Houqi Ai"
    },
    {
      "name": "Qinhui Jiang"
    },
    {
      "name": "Manjie Li"
    },
    {
      "name": "Mengyao Li"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/79r9s2edes7cp.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.01924",
  "fulltext_url": null,
  "id": "79r9s2edes7cp",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.01924",
  "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",
      "physics.app-ph"
    ],
    [
      "arxiv",
      "physics.flu-dyn"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.01924",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/79r9s2edes7cp.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:59Z",
      "native_id": "2611.01924",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.01924"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.app-ph",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.flu-dyn",
      "subfield": "fluid-dynamics"
    }
  ],
  "title": "Experimental Realization of Higher-order Topological Water Wave Crystal",
  "title_text": "Experimental Realization of Higher-order Topological Water Wave Crystal",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:18Z",
  "url": "https://research.draconitic.com/paper/79r9s2edes7cp",
  "venue": "arXiv",
  "versions": []
}