Superconducting Levitated Detector of Gravitational Waves.

Authors

Daniel Carney, Gerard Higgins, Giacomo Marocco, Michael Wentzel

Published in

Physical review letters. Volume 134. Issue 18. Pages 181402. May 09, 2025.

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≲10^{-20}/sqrt[Hz] for frequencies of 1 kHz-1 MHz, opening new corridors for astrophysical probes of new physics.

PMID:
40408702
Bibliographic data and abstract were imported from PubMed on 24 May 2025.

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