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arXiv · 2303.01518

MAGO$\,$2.0: Electromagnetic Cavities as Mechanical Bars for Gravitational Waves

Asher Berlin·Diego Blas·Raffaele Tito D'Agnolo·Sebastian A. R. Ellis·Roni Harnik·Yonatan Kahn·Jan Schütte-Engel·Michael Wentzel
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Abstract

Superconducting cavities can operate analogously to Weber bar detectors of gravitational waves, converting mechanical to electromagnetic energy. The significantly reduced electromagnetic noise results in increased sensitivity to high-frequency signals well outside the bandwidth of the lowest mechanical resonance. In this work, we revisit such signals of gravitational waves and demonstrate that a setup similar to the existing "MAGO" prototype, operating in a scanning or broadband manner, could have sensitivity to strains of $\sim 10^{-22} - 10^{-18}$ for frequencies of $\sim 10 \ \text{kHz} - 1 \ \text{GHz}$.

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Asher Berlin, Diego Blas, Raffaele Tito D'Agnolo, Sebastian A. R. Ellis, Roni Harnik, Yonatan Kahn, Jan Schütte-Engel, Michael Wentzel. 2023-03-02. MAGO$\,$2.0: Electromagnetic Cavities as Mechanical Bars for Gravitational Waves. https://doi.org/10.1103/physrevd.108.084058

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