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Superconducting Levitated Detector of Gravitational Waves

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arxiv 2408.01583 v2 pith:OSBVDQ3C submitted 2024-08-02 hep-ph astro-ph.HEgr-qchep-ex

classification hep-phastro-ph.HEgr-qchep-ex
keywords gravitationallevitateddetectorfieldmagneticmathrmsuperconductingwave
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

A magnetically levitated mass couples to gravity and can act as an effective gravitational wave detector. We show that a superconducting sphere levitated in a quadrupolar magnetic field, when excited by a gravitational wave, will produce magnetic field fluctuations that can be read out using a flux tunable microwave resonator. With a readout operating at the standard quantum limit, such a system could achieve broadband strain noise sensitivity of $h \lesssim 10^{-20}/\sqrt{\rm Hz}$ for frequencies of $1~\mathrm{kHz}~-~1~\mathrm{MHz}$, opening new corridors for astrophysical probes of new physics.

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Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Halbach Magnetic Weber Bars

    hep-ph 2026-07 conditional novelty 6.0 of 10

    Halbach-array field gradients boost the displacement-to-flux readout of a resonant-sphere magnetic Weber bar, projecting ~10^-21/√Hz strain sensitivity near 10 kHz and ~5×10^-20/√Hz broadband at higher frequencies.

  2. Cavity Multimodes as an Array for High-Frequency Gravitational Waves

    hep-ph 2026-01 conditional novelty 6.0 of 10

    A 9-cell microwave cavity's 18 modes can act as a synthetic detector array that reconstructs the direction, polarization, and chirp of a high-frequency gravitational-wave signal.

  3. Gravitational Photon Polarization Twist to Probe the Early Universe and the Galactic Center

    hep-ph 2025-07 conditional novelty 6.0 of 10

    A long-baseline laser pulse whose polarization is twisted by gravitational waves could detect galactic-center pulsar and early-universe gravitational wave backgrounds.

  4. High-Frequency Gravitational Waves on BREAD

    hep-ph 2025-05 conditional novelty 6.0 of 10

    BREAD with single photon detectors could detect high-frequency gravitational waves at 0.05 to 200 THz, with projected strains as low as 1e-25 at 200 THz.

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