Earth screening of quadratically coupled ultralight dark matter produces a multi-band frequency structure in the induced force whose sideband amplitudes vary annually, enabling improved constraints from MICROSCOPE and future EP missions.
Macroscopic Quantum Interference in Dark Matter Wave Scattering with MICROSCOPE
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abstract
Ultralight dark matter behaves as a coherent wave, yet its quantum interference effects of elastic scattering with multiple targets have remained unexplored. We show that the nested test masses of MICROSCOPE realize such an ``interferometer'' for dark-matter wave scattering. Amplitudes from the two concentric cylinders interfere and redistribute the induced force between them. This effect produces unique and rotation-modulated signals set by the target geometry. Developing the theoretical framework and applying it to MICROSCOPE data, we obtain leading constraints on quadratic dark-matter--nucleon coupling for masses $10^{-3}$--$10^{-2}\,$eV, reaching cross sections of order $10^{-52}$ cm$^2$.
fields
hep-ph 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Introduces a directional force template for quadratic ultralight DM couplings, recasts MICROSCOPE constraints, and estimates sensitivity improvement in the anisotropic regime.
citing papers explorer
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Background-Induced Forces from Quadratically Coupled Ultralight Dark Matter
Earth screening of quadratically coupled ultralight dark matter produces a multi-band frequency structure in the induced force whose sideband amplitudes vary annually, enabling improved constraints from MICROSCOPE and future EP missions.
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A directional force template for quadratically coupled ultralight dark matter
Introduces a directional force template for quadratic ultralight DM couplings, recasts MICROSCOPE constraints, and estimates sensitivity improvement in the anisotropic regime.