MOSAIC is a proposed scalable array of YIG magnon spheres coupled to electron-on-neon qubits that could search for electron-coupled axion dark matter with projected sensitivity beyond current ferromagnetic haloscopes.
Axions from string decay
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abstract
We have studied numerically the evolution and decay of axion strings. These global defects decay mainly by axion emission and thus contribute to the cosmological axion density. The relative importance of this source relative to misalignment production of axions depends on the spectrum. Radiation spectra for various string loop configurations are presented. They support the contention that the string decay contribution is of the same order of magnitude as the contribution from misalignment.
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MOSAIC: Magnonic Observations of Spin-dependent Axion-like InteraCtions
MOSAIC is a proposed scalable array of YIG magnon spheres coupled to electron-on-neon qubits that could search for electron-coupled axion dark matter with projected sensitivity beyond current ferromagnetic haloscopes.