{
  "abstract": "Light-matter interactions underlie many quantum technologies, yet whether quasiparticles formed from such interactions preserve the full quantum state of light remains unresolved. Surface plasmon polaritons (SPPs), a class of polaritons formed by interacting photons with free-electron oscillations at metal-dielectric interfaces, are prime candidates to explore this question. Here we demonstrate quantum interference between single photons and SPPs using an Au-SiN$_{\\mathrm{x}}$ integrated photonic-plasmonic device. Our results reveal that SPPs retain the indistinguishability of their excitation photons, establishing SPP as a viable quantum information carrier and opening a potential route toward photonic-plasmonic quantum circuitry.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.02200",
  "author_total": 14,
  "authors": [
    {
      "name": "Yun-Ru Fan"
    },
    {
      "name": "Ying-Ao Su"
    },
    {
      "name": "Kai Guo"
    },
    {
      "name": "Bo-Yu Fan"
    },
    {
      "name": "Yao-Qing Zhang"
    },
    {
      "name": "Hai-Zhi Song"
    },
    {
      "name": "Hao Li"
    },
    {
      "name": "Yong Geng"
    },
    {
      "name": "Kun Chen"
    },
    {
      "name": "Deng-Ke Zhang"
    },
    {
      "name": "Li-Xing You"
    },
    {
      "name": "Yan-Yu Wei"
    },
    {
      "name": "Guang-Can Guo"
    },
    {
      "name": "Qiang Zhou"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e682pwwq6dt07.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.02200",
  "fulltext_url": null,
  "id": "e682pwwq6dt07",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.02200",
  "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"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Strong Light-Matter Interactions"
    ]
  ],
  "openalex": "W7207714562",
  "pdf_url": "https://arxiv.org/pdf/2609.02200",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/e682pwwq6dt07.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:16Z",
      "native_id": "2609.02200",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.02200"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Observation of Hong-Ou-Mandel interference between photon and polariton",
  "title_text": "Observation of Hong-Ou-Mandel interference between photon and polariton",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:16Z",
  "url": "https://research.draconitic.com/paper/e682pwwq6dt07",
  "venue": "arXiv",
  "versions": []
}