{
  "abstract": "Predicting quantum-photonic circuit performance requires retaining source and device physics without making photon-counting calculations prohibitively expensive. Here we present PhoQuS, a framework that combines frequency-resolved source models, electromagnetic compact models and spatially correlated fabrication variation to simulate quantum photonic circuits. Covariance-Gram reduction after full-resolution Gaussian propagation lowers readout cost while retaining dominant spectral correlations. For continuous-variable state preparation, spectral reduction accelerates photon counting by 60.4-fold in an approximate Gottesman-Kitaev-Preskill circuit. Frequency-resolved modeling guides the use of cascaded squeezing with temporal walk-off compensation, yielding 0.99 fidelity to the single-mode circuit reference and 0.98 conditional purity in lossless simulations. For discrete-variable state preparation, simulations of three-photon Greenberger-Horne-Zeilinger circuits across a virtual wafer show that component robustness alone does not predict circuit fidelity, which depends jointly on source spectra, circuit architecture and control. PhoQuS connects device physics to protocol-level performance through a unified workflow that retains spectral detail while reducing readout cost.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.16150",
  "author_total": 5,
  "authors": [
    {
      "name": "Seongjin Jeon"
    },
    {
      "name": "Youngbin Kim"
    },
    {
      "name": "Joaquin Matres"
    },
    {
      "name": "Dong-Yeop Na"
    },
    {
      "name": "Young-Ik Sohn"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9vd9mwnd4bwfq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.16150",
  "fulltext_url": null,
  "id": "9vd9mwnd4bwfq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.16150",
  "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",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7221772356",
  "pdf_url": "https://arxiv.org/pdf/2610.16150",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9vd9mwnd4bwfq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2610.16150",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.16150"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Device-to-protocol simulation of spectrally-resolved quantum photonic circuits",
  "title_text": "Device-to-protocol simulation of spectrally-resolved quantum photonic circuits",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:06Z",
  "url": "https://research.draconitic.com/paper/9vd9mwnd4bwfq",
  "venue": "arXiv",
  "versions": []
}