{
  "abstract": "Electron cotunneling in semiconductor quantum dots is a higher-order tunneling mechanism that connects initial and final charge states through energetically inaccessible virtual intermediate configurations. In quantum-dot arrays, such processes can produce simultaneous charge motion across multiple tunnel junctions and enable transitions that would otherwise be suppressed by Coulomb blockade. Here, building on an earlier proof-of-principle demonstration, we investigate radio-frequency (rf)-driven correlated cotunneling and its application to dispersive quantum-dot readout. Using both theoretical modeling and experimental measurements in two different foundry-fabricated silicon devices, we show that an external rf drive can induce correlated cyclic single-electron transitions, resulting in enhanced charge-polarization of the system. We develop a general theoretical framework for rf electron-cascade readout, which exploits cotunneling events in quantum-dot systems with three or more dots to produce a relative signal enhancement, and extend its experimental demonstration to a gate-sensed device architecture. Our results establish the operating principles of rf electron-cascade readout and provide a route to increased dispersive readout fidelity in semiconductor quantum computing architectures.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.05206",
  "author_total": 11,
  "authors": [
    {
      "name": "Tara Murphy"
    },
    {
      "name": "Lorenzo Peri"
    },
    {
      "name": "Giovanni A. Oakes"
    },
    {
      "name": "Jacob F. Chittock-Wood"
    },
    {
      "name": "Ross C. C. Leon"
    },
    {
      "name": "Fabrizio Berritta"
    },
    {
      "name": "Amber Heskes"
    },
    {
      "name": "David Wise"
    },
    {
      "name": "Anasua Chatterjee"
    },
    {
      "name": "Ferdinand Kuemmeth"
    },
    {
      "name": "M. Fernando Gonzalez-Zalba"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8ach5q6r27a63.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.05206",
  "fulltext_url": null,
  "id": "8ach5q6r27a63",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.05206",
  "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",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W7220692557",
  "pdf_url": "https://arxiv.org/pdf/2610.05206",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8ach5q6r27a63.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:01Z",
      "native_id": "2610.05206",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.05206"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Radio-frequency electron cascade in semiconductor quantum dots",
  "title_text": "Radio-frequency electron cascade in semiconductor quantum dots",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:01Z",
  "url": "https://research.draconitic.com/paper/8ach5q6r27a63",
  "venue": "arXiv",
  "versions": []
}