{
  "abstract": "Shift current (SC) drives the bulk photovoltaic effect, holding promise for near-instantaneous, low-dissipation photodetection and energy conversion. The current understanding of SC relies primarily on a single-particle picture, in which the SC is determined purely by band dispersion. While many-body effects from directly excited quasiparticles, such as excitons, magnons and phonons, have been explored, the renormalization of electronic states by quantum virtual-phonon coupling --- inherent in essentially all solids and particularly decisive for transport --- remains unaddressed. Here, using first-principles calculations, we identify this missing channel --- band-renormalized shift current (BRSC) --- in monolayer MoS2. We find that the zero-point renormalization alone, without any polarization-carrying photoexcited phonons and with barely any alteration of the band dispersion, dramatically reshapes the SC spectrum: emergent low-energy peaks arise from phonon-assisted optical transitions between momentum-distinct states, with a pronounced redshift of higher-energy features. A mere 1.0% strain sharply tunes the BRSC, whereas raising the temperature enhances it. Our findings overturn the band-structure-only paradigm, establishing electron-phonon coupling as an indispensable ingredient for nonlinear photocurrent and opening a strain-thermal route for engineering next-generation optoelectronic responses.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.08019",
  "author_total": 6,
  "authors": [
    {
      "name": "Yang Li"
    },
    {
      "name": "Zuzhang Lin"
    },
    {
      "name": "Zhikuan Wang"
    },
    {
      "name": "Chengzhi Wu"
    },
    {
      "name": "Zeyu Jiang"
    },
    {
      "name": "Bing Huang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8nbxqgfe8vm54.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.08019",
  "fulltext_url": null,
  "id": "8nbxqgfe8vm54",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.08019",
  "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.mes-hall"
    ],
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "arxiv",
      "physics.app-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.08019",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8nbxqgfe8vm54.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T18:21:30Z",
      "native_id": "2611.08019",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.08019"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.app-ph",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Zero-Point Renormalization Reshapes the Shift Current: The Role of Electron-Phonon Coupling",
  "title_text": "Zero-Point Renormalization Reshapes the Shift Current: The Role of Electron-Phonon Coupling",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:41Z",
  "url": "https://research.draconitic.com/paper/8nbxqgfe8vm54",
  "venue": "arXiv",
  "versions": []
}