{
  "abstract": "Non-Hermitian topological transitions offer a route to controlling topology through dissipation, but their experimental signatures depend on how loss modifies the system's response. Here, we experimentally realize loss-induced quadrupole topology in a square-octagon RLC circuit whose ideal Hermitian limit is a gapped trivial insulator. Patterned grounding resistors introduce on-site loss while the conservative couplings remain fixed. Band spectra and biorthogonal nested Wilson loops identify a loss-driven topological transition accompanied by closure and reopening of the real line gap. Impedance spectroscopy and spatial maps reveal corner-localized responses consistent with the predicted quadrupole phase. Comparing two finite-loss configurations, we observe enhanced corner contrast at stronger patterned loss within the same predicted phase. These results connect dissipation-driven topology to observable boundary responses in RLC circuits.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.02435",
  "author_total": 4,
  "authors": [
    {
      "name": "Wenxue He"
    },
    {
      "name": "Chen Wang"
    },
    {
      "name": "Fan Yang"
    },
    {
      "name": "Hechen Ren"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fcg54ccnfmtye.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.02435",
  "fulltext_url": null,
  "id": "fcg54ccnfmtye",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.02435",
  "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.mes-hall"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.02435",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fcg54ccnfmtye.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:59Z",
      "native_id": "2611.02435",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.02435"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Experimental realization of loss-induced quadrupole topology from a gapped trivial insulator in RLC circuits",
  "title_text": "Experimental realization of loss-induced quadrupole topology from a gapped trivial insulator in RLC circuits",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:58Z",
  "url": "https://research.draconitic.com/paper/fcg54ccnfmtye",
  "venue": "arXiv",
  "versions": []
}