{
  "abstract": "Gravitational waves (GWs) can induce effective electromagnetic currents when interacting with external electric and magnetic fields, as described by linearized gravity modifications to Maxwell's equations. This coupling enables a novel detection approach for high-frequency gravitational waves (HFGWs) using axion haloscope experiments. Here we present the MAGnetic Gravitational wave Induction Experiment (MAGGIE), the first lumped-element HFGW detector proposed in Europe, designed to probe HFGWs in the kHz-MHz regime by leveraging a 14 T solenoidal magnet at the University of Hamburg. The GW-induced magnetic flux is captured by a custom-designed pickup loop optimized for the expected symmetry of the effective current. A figure-8-shaped geometry, oriented to break the azimuthal symmetry, is implemented, together with a blind-loop configuration, for real-time noise rejection and calibration. The readout scheme is tailored for continuous signals and time-domain transient searches, using waveform templates for primordial black hole (PBH) mergers. The expected experimental reach in terms of strain spectral noise density at the 40 MHz high-frequency end is projected to reach $\\sim 4 \\times 10^{-16}/\\sqrt{\\mathrm{Hz}}$ for transient searches, and in terms of strain, projected to reach $\\sim 10^{-19}$ for 1 year of continuous search. This allows MAGGIE to constrain currently unexplored regions of the HFGW parameter space.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.30318",
  "author_total": 4,
  "authors": [
    {
      "name": "Jasper Jödicke"
    },
    {
      "name": "Marios Maroudas"
    },
    {
      "name": "Toma-Stefan Cezar"
    },
    {
      "name": "Dieter Horns"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fet2aqv060v5g.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.30318",
  "fulltext_url": null,
  "id": "fet2aqv060v5g",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.30318",
  "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",
      "astro-ph.IM"
    ],
    [
      "arxiv",
      "gr-qc"
    ],
    [
      "arxiv",
      "hep-ex"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3103|Pulsars and Gravitational Waves Research"
    ]
  ],
  "openalex": "W7214655282",
  "pdf_url": "https://arxiv.org/pdf/2609.30318",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fet2aqv060v5g.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:24:52Z",
      "native_id": "2609.30318",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.30318"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.IM",
      "subfield": "instrumentation-methods"
    },
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "MAGGIE: A Magnetic Gravitational Wave Induction Experiment",
  "title_text": "MAGGIE: A Magnetic Gravitational Wave Induction Experiment",
  "type": "preprint",
  "updated_at": "2026-10-30T12:24:52Z",
  "url": "https://research.draconitic.com/paper/fet2aqv060v5g",
  "venue": "arXiv",
  "versions": []
}