{
  "abstract": "Shot-noise measurements with a quantum point contact provide a direct probe of the quasiparticle charge in Laughlin fractional quantum Hall (FQH) states. However, the interpretation of such measurements becomes more subtle for multichannel edges, where the point-contact tunneling noise coexists with noise generated by intermode equilibration and heating. We develop a general framework that incorporates both these contributions and apply it to the paradigmatic $ν=2/3$ FQH edge. We derive expressions for the drain auto- and cross-correlations in a four-terminal QPC geometry and show that equilibration-induced heating affects the auto- and cross-correlations in parametrically different way than the intrinsic partition noise. This distinction permits us to propose a specific combination of the two correlations which strongly suppresses the heating contribution and fully recovers the tunneling quasiparticle charge. Our results thereby provide a systematic framework for interpreting shot-noise measurements in complex FQH edges and can be further extended to more general counterpropagating edge structures.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.02818",
  "author_total": 2,
  "authors": [
    {
      "name": "Jinhong Park"
    },
    {
      "name": "Christian Spånslätt"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/aprwraqhjk00w.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.02818",
  "fulltext_url": null,
  "id": "aprwraqhjk00w",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.02818",
  "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",
      "cond-mat.mes-hall"
    ],
    [
      "openalex",
      "3107|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W7220379409",
  "pdf_url": "https://arxiv.org/pdf/2610.02818",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/aprwraqhjk00w.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:22Z",
      "native_id": "2610.02818",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.02818"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Extracting the anyon charge from shot noise in complex fractional quantum Hall edges",
  "title_text": "Extracting the anyon charge from shot noise in complex fractional quantum Hall edges",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:22Z",
  "url": "https://research.draconitic.com/paper/aprwraqhjk00w",
  "venue": "arXiv",
  "versions": []
}