{
  "abstract": "Due to the inherent scattering in topological edge states, the topological resonant cavity (TRC) formed by their interference exhibits a relatively low quality factor (Q). To address this issue, we propose the mechanism of engineering the transverse evanescent depth of edge states to achieve high-Q in irregular shaped TRCs, which further enables strong photon-exciton coupling at the single-quantum level. By adjusting the intra- and inter-cell coupling strengths in the pseudo-spin topological photonic crystal, the transverse evanescent depth of edge states is greatly reduced, thereby suppressing the scattering of TRCs. Consequently, the Q of various shaped TRCs with 2 ~ 3 um size is up to 10^5 ~ 10^6 in the visible, so that the strong photon-exciton coupling is achieved. The high-Q topological cavities hold promising application in integrated lasers, sensors, cavity quantum electrodynamics, and quantum photonics.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.06351",
  "author_total": 5,
  "authors": [
    {
      "name": "Zihan Mo"
    },
    {
      "name": "Renxuan Peng"
    },
    {
      "name": "Haoyang Zhang"
    },
    {
      "name": "Yu Tian"
    },
    {
      "name": "Ying Gu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7c6bda4td6g1p.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.06351",
  "fulltext_url": null,
  "id": "7c6bda4td6g1p",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.06351",
  "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.optics"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.06351",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7c6bda4td6g1p.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T15:20:56Z",
      "native_id": "2611.06351",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.06351"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Evanescent-Depth-Engineered High-Q topological Cavities for Strong Photon-Exciton Coupling",
  "title_text": "Evanescent-Depth-Engineered High-Q topological Cavities for Strong Photon-Exciton Coupling",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:20Z",
  "url": "https://research.draconitic.com/paper/7c6bda4td6g1p",
  "venue": "arXiv",
  "versions": []
}