{
  "abstract": "Hong-Ou-Mandel interference underpins many photonic quantum information protocols and is commonly characterized by a single visibility parameter. This quantity is typically obtained by averaging over a fixed coincidence window, thereby discarding details of the underlying temporal structure that are critical in continuous-wave processes. Four-photon interference with continuous-wave sources furthermore requires photon pairs with long coherence times, which we generate in microring resonators and measure with ultrafast time-resolved detection. Here, we model and resolve their interference and temporal structure by recording all four photon arrival times and mapping their relative delays onto a three-dimensional coincidence histogram relative to a trigger detection. The resulting structure preserves relative arrival-time correlations that are usually discarded and enables post-processed optimization of coincidence windows to trade off visibility against count rate. This method provides a general benchmark for continuous-wave sources in interference-based quantum network protocols.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.21909",
  "author_total": 6,
  "authors": [
    {
      "name": "Sabine Häussler"
    },
    {
      "name": "Meritxell Cabrejo-Ponce"
    },
    {
      "name": "Ana Maria Torres"
    },
    {
      "name": "Baghdasar Baghdasaryan"
    },
    {
      "name": "Karen Lozano-Mendéz"
    },
    {
      "name": "Fabian Steinlechner"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/57d0ht7fnhtdg.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.21909",
  "fulltext_url": null,
  "id": "57d0ht7fnhtdg",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.21909",
  "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",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7222524672",
  "pdf_url": "https://arxiv.org/pdf/2610.21909",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/57d0ht7fnhtdg.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:50Z",
      "native_id": "2610.21909",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.21909"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Looking Beyond Visibility: Resolving the Temporal Structure of Continuous-Wave Four-Photon Hong-Ou-Mandel Interference",
  "title_text": "Looking Beyond Visibility: Resolving the Temporal Structure of Continuous-Wave Four-Photon Hong-Ou-Mandel Interference",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:50Z",
  "url": "https://research.draconitic.com/paper/57d0ht7fnhtdg",
  "venue": "arXiv",
  "versions": []
}