{
  "abstract": "Rydberg atomic electric-field sensors, under the framework of optical excitation and readout, can overcome the size-to-wavelength constraint imposed by the Chu limit. However, their sensitivity for decametric-wavelength shortwave electric fields is substantially lower than that for microwave ones, stemming from the off-resonant nature of low-frequency signals with Rydberg transitions. Here, we demonstrate a high-sensitivity heterodyne shortwave sensor based on microwave-dressed Rydberg atoms, leveraging precisely modulated Floquet sidebands. Around local- and microwave-field-engineered Floquet sidebands, the steep response gradient, arising from the enhanced atom-shortwave interaction through additionally created coherent channels, induces pronounced amplification of the heterodyne intermediate-frequency signal. As a result, compared to the same atomic heterodyne setup without microwave modulation, such Floquet-sideband-enhanced shortwave measurement boosts the sensitivity by four orders of magnitude, yielding a sensitivity of -122.7 dBm/Hz for shortwave at 30 MHz. This work offers a potential route to high-sensitive portable shortwave receivers in radio astronomy, radar and long-distance communications.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.06567",
  "author_total": 10,
  "authors": [
    {
      "name": "Jiaqi Yuan"
    },
    {
      "name": "Yunlong Xue"
    },
    {
      "name": "Yongjie Cheng"
    },
    {
      "name": "Ruidong He"
    },
    {
      "name": "Jiteng Sheng"
    },
    {
      "name": "Yanpeng Zhang"
    },
    {
      "name": "Zhengyang Bai"
    },
    {
      "name": "Yu-Qiang Ma"
    },
    {
      "name": "Min Xiao"
    },
    {
      "name": "Zhaoyang Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7v0cbnhsz9sz3.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.06567",
  "fulltext_url": null,
  "id": "7v0cbnhsz9sz3",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.06567",
  "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",
      "physics.atom-ph"
    ],
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "3107|Quantum optics and atomic interactions"
    ]
  ],
  "openalex": "W7212073522",
  "pdf_url": "https://arxiv.org/pdf/2609.06567",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7v0cbnhsz9sz3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2609.06567",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.06567"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.atom-ph",
      "subfield": "amo"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Floquet-sideband-enhanced shortwave electrometry with Rydberg atoms",
  "title_text": "Floquet-sideband-enhanced shortwave electrometry with Rydberg atoms",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:48Z",
  "url": "https://research.draconitic.com/paper/7v0cbnhsz9sz3",
  "venue": "arXiv",
  "versions": []
}