{
  "abstract": "Understanding how nuclear motion couples to intramolecular charge transfer beyond the perturbative regime of light--matter interaction remains an open problem. We tackle this problem by investigating the electron-nuclear response of an acceptor-donor-acceptor oligomer with structural asymmetry due to the partial fluorination of an acceptor unit. Adopting real-time time-dependent density functional theory combined with Ehrenfest dynamics, we excite the systems with a resonant pulse of varying intensity, spanning the weak-, intermediate-, and strong-coupling regimes. When nuclei are clamped, field-driven charge preferentially flows from the donor to the fluorinated acceptor, with selectivity reduced upon increasing intensity. With moving ions, the early-time spatial response remains qualitatively unchanged, despite a distinct, spatially asymmetric charge redistribution. In the strong-field regime, nuclear motion preserves the preference for field-driven charge accumulation on the fluorinated acceptor, although the process takes approximately twice the time as in the fixed-nuclei scenario. Mode-resolved kinetic-energy analysis reveals that, with increasing field strength, the laser-induced nuclear response shifts from selected bond stretchings to collective low-frequency modes. These results provide a benchmark for assessing the interplay between vibronic dynamics and strong-field coupling in donor/acceptor oligomers.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.41462",
  "author_total": 3,
  "authors": [
    {
      "name": "Jannik Theile"
    },
    {
      "name": "Michele Guerrini"
    },
    {
      "name": "Caterina Cocchi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1q3f990rr8e57.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.41462",
  "fulltext_url": null,
  "id": "1q3f990rr8e57",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.41462",
  "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.mtrl-sci"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.41462",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1q3f990rr8e57.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:21:15Z",
      "native_id": "2610.41462",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.41462"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Strong-Field-Driven Non-Linear Vibronic Coupling in an Asymmetric Donor-Acceptor Oligomer",
  "title_text": "Strong-Field-Driven Non-Linear Vibronic Coupling in an Asymmetric Donor-Acceptor Oligomer",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:51Z",
  "url": "https://research.draconitic.com/paper/1q3f990rr8e57",
  "venue": "arXiv",
  "versions": []
}