{
  "abstract": "Dimensionality strongly affects elementary excitations in correlated quantum materials, yet its impact on extreme nonlinear optical responses remains largely unexplored. Here, we combine high-harmonic generation (HHG) experiments on quasi-one-dimensional SrCuO$_2$ and quasi-two-dimensional Pr$_2$CuO$_4$ with nonequilibrium simulations of Hubbard models. We find a pronounced dimensional contrast: SrCuO$_2$ exhibits a robust plateau-like high-harmonic spectrum with weak temperature dependence, whereas Pr$_2$CuO$_4$ shows a monotonic decrease in harmonic yield and strong thermal suppression, especially at higher harmonics. The simulations qualitatively reproduce these trends and identify dimensionality-dependent doublon--holon dephasing, governed by spin--charge coupling, as their microscopic origin. These results establish dimensionality and spin--charge coupling as key control parameters for extreme nonlinear optical responses in correlated insulators.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.02466",
  "author_total": 9,
  "authors": [
    {
      "name": "Kento Uchida"
    },
    {
      "name": "Shintaro Takayoshi"
    },
    {
      "name": "Yuta Murakami"
    },
    {
      "name": "Dongjoon Song"
    },
    {
      "name": "Alannah M. Hallas"
    },
    {
      "name": "Masayuki Watanabe"
    },
    {
      "name": "Takashi Konishi"
    },
    {
      "name": "Aiko Nakano"
    },
    {
      "name": "Koichiro Tanaka"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0a1yj0fca8gwb.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.02466",
  "fulltext_url": null,
  "id": "0a1yj0fca8gwb",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.02466",
  "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",
      "cond-mat.str-el"
    ],
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "3107|Laser-Matter Interactions and Applications"
    ]
  ],
  "openalex": "W7207836391",
  "pdf_url": "https://arxiv.org/pdf/2609.02466",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0a1yj0fca8gwb.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:16Z",
      "native_id": "2609.02466",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.02466"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Prominent Dimensional Effects on High-order Harmonic Generation in Strongly Correlated Electron Systems",
  "title_text": "Prominent Dimensional Effects on High-order Harmonic Generation in Strongly Correlated Electron Systems",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:16Z",
  "url": "https://research.draconitic.com/paper/0a1yj0fca8gwb",
  "venue": "arXiv",
  "versions": []
}