{
  "abstract": "We construct a quantum theory of light in nonlinearly responding materials with dispersion and absorption and, in particular, show the emergence of non-Gaussian noise associated with nonlinear absorption processes. Our theory is based on a path-integral formulation of the microscopic Huttner-Barnett model including cubic matter self-interaction required for $χ^{(2)}$ nonlinear processes. We show that the noise polarization emerges naturally from a decoupling of the stochastic weights of the bath response which, in case of cubic self-interactions, leads to a decoupling via Airy functions. As the theory is, by construction, consistent with the nonlinear fluctuation-dissipation theorem, it constitutes a viable quantum theory of light in nonlinear media.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.31406",
  "author_total": 3,
  "authors": [
    {
      "name": "Arman Kashef"
    },
    {
      "name": "Stefan Scheel"
    },
    {
      "name": "Marco Ornigotti"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ay3smbbb5sz9z.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.31406",
  "fulltext_url": null,
  "id": "ay3smbbb5sz9z",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.31406",
  "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",
      "3107|Quantum optics and atomic interactions"
    ]
  ],
  "openalex": "W7223304440",
  "pdf_url": "https://arxiv.org/pdf/2610.31406",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ay3smbbb5sz9z.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:34Z",
      "native_id": "2610.31406",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.31406"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Nonlinear quantum noise polarization in macroscopic nonlinear QED",
  "title_text": "Nonlinear quantum noise polarization in macroscopic nonlinear QED",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:34Z",
  "url": "https://research.draconitic.com/paper/ay3smbbb5sz9z",
  "venue": "arXiv",
  "versions": []
}