PoS - Proceedings of Science
Volume 449 - The European Physical Society Conference on High Energy Physics (EPS-HEP2023) - T02 Gravitation and Cosmology
Global Network of Cavities to Search for Gravitational Waves: GravNet
K. Schmieden* and M. Schott
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Pre-published on: January 28, 2024
Published on: March 21, 2024
The idea of searching for gravitational waves using cavities in strong magnetic fields has recently received significant attention. In particular, cavities with rather small volumes that are currently used to search for axions are discussed in this context. We propose here a novel experimental scheme enabling the search for gravitational waves with MHz frequencies and above, which could be caused for example by primordial black hole mergers. The scheme is based on synchronous measurements of cavity signals from several devices operating in magnetic fields at distant locations. Although signatures of gravitational waves may be present as identifiable signals in a single cavity, it is highly challenging to distinguish them from noise. By analysing the correlation between signals from multiple, geographically separated cavities, it is not only possible to increase substantially the signal over noise ratio, but also to investigate the nature and the source of those gravitational wave signatures. The prospects of GravNet (Global Network of Cavities to Search for Gravitational Waves) are outlined in this presentation.
DOI: https://doi.org/10.22323/1.449.0102
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