{
  "abstract": "Graphene calorimeters are predicted to combine extreme energy sensitivity with rapid thermal recovery, yet experiments remain far from ideal estimates. Here, we directly calibrate a graphene Josephson-junction microwave calorimeter using nanosecond pulses and independently determine the thermal parameters of the same operating device. At 110 mK, calibrated pulse measurements yield a characteristic switching-energy scale of 18.1 meV (2.90 zJ), while time-resolved two-pulse thermometry gives an intrinsic relaxation time of 19.5 ns. Pulse-width-dependent calorimetry and bolometric thermometry show that the electronic heat capacity is 12.4 times and the electron-phonon coupling is approximately 50 times larger than ideal estimates. A thermal model using these measured parameters predicts 21.2 meV, quantitatively reproducing the observed switching response. These results identify the microscopic origin of the sensitivity gap in graphene calorimeters and establish a self-consistent calibration framework for ultrafast nanoscale thermal detectors.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.33414",
  "author_total": 12,
  "authors": [
    {
      "name": "Seunghan Lee"
    },
    {
      "name": "Woochan Jung"
    },
    {
      "name": "Jayeon Kim"
    },
    {
      "name": "Dongsung T. Park"
    },
    {
      "name": "Seong Jang"
    },
    {
      "name": "Seongeun Jeon"
    },
    {
      "name": "Kenji Watanabe"
    },
    {
      "name": "Takashi Taniguchi"
    },
    {
      "name": "Jong-Chul Park"
    },
    {
      "name": "Philip Kim"
    },
    {
      "name": "Kin Chung Fong"
    },
    {
      "name": "Gil-Ho Lee"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a0vwcberzg38t.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.33414",
  "fulltext_url": null,
  "id": "a0vwcberzg38t",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.33414",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3103|Superconducting and THz Device Technology"
    ]
  ],
  "openalex": "W7223929524",
  "pdf_url": "https://arxiv.org/pdf/2610.33414",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-24",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/a0vwcberzg38t.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.33414",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.33414"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Zeptojoule Microwave Calorimetry with Nanosecond Recovery in Graphene",
  "title_text": "Zeptojoule Microwave Calorimetry with Nanosecond Recovery in Graphene",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/a0vwcberzg38t",
  "venue": "arXiv",
  "versions": []
}