{
  "abstract": "Bilayer graphene (BLG) quantum dots (QDs) are a promising platform for semiconductor qubits. However, the low-frequency charge noise that may ultimately limit coherence has remained largely unexplored. Here, we systematically characterize charge noise in gate-defined BLG QDs using transport-based noise spectroscopy. We extract a median amplitude of $ S_μ^{1/2} (1~\\text{Hz}) = 1.16~μ\\text{eV}/\\sqrt{\\text{Hz}}$, placing BLG well within the range reported for established semiconductor quantum-dot platforms. Across variations in charge occupation, confinement, source-drain bias, and charge-sensor operating conditions, neither the noise amplitude nor the spectral dependence shows a reproducible trend in electrostatic tuning, indicating that we extracted the intrinsic semiconductor noise. Consistent noise levels are further observed in double QDs and confirmed using an independent superconducting resonator-based dispersive readout. Extending the study to BLG devices incorporating transition metal dichalcogenide layers reveals no measurable charge noise increase in weakly proximitized QDs. These results validate BLG as a viable platform for coherent quantum information processing.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.03650",
  "author_total": 15,
  "authors": [
    {
      "name": "Jessica Richter"
    },
    {
      "name": "Max J. Ruckriegel"
    },
    {
      "name": "Jonas D. Gerber"
    },
    {
      "name": "Tijl Degroote"
    },
    {
      "name": "Christoph Adam"
    },
    {
      "name": "Markus Niese"
    },
    {
      "name": "Lara Ostertag"
    },
    {
      "name": "Clara Galante"
    },
    {
      "name": "Kenji Watanabe"
    },
    {
      "name": "Takashi Taniguchi"
    },
    {
      "name": "Petar Tomic"
    },
    {
      "name": "Artem O. Denisov"
    },
    {
      "name": "Hadrien Duprez"
    },
    {
      "name": "Klaus Ensslin"
    },
    {
      "name": "Thomas Ihn"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9kb0zc5xrgxw5.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.03650",
  "fulltext_url": null,
  "id": "9kb0zc5xrgxw5",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.03650",
  "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"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W7208748310",
  "pdf_url": "https://arxiv.org/pdf/2609.03650",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9kb0zc5xrgxw5.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:31Z",
      "native_id": "2609.03650",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.03650"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Low-Frequency Charge Noise in Bilayer Graphene Quantum Dots",
  "title_text": "Low-Frequency Charge Noise in Bilayer Graphene Quantum Dots",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:31Z",
  "url": "https://research.draconitic.com/paper/9kb0zc5xrgxw5",
  "venue": "arXiv",
  "versions": []
}