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Gravitational Interaction of Ultralight Dark Matter with Interferometers
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Gravitational Interaction of Ultralight Dark Matter with Interferometers
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Ultralight dark matter exhibits an order-one density fluctuation over the spatial scale of its wavelength. These fluctuations gravitationally interact with gravitational wave interferometers, leading to distinctive signals in detectors. We investigate the ultralight dark matter-induced effects in the gravitational wave interferometers. We perform a systematic computation of the power spectrum of ultralight dark matter in interferometers. We show that the ultralight dark matter-induced effect is most relevant for the interferometers with long baseline and that it is only a sub-leading effect compared to the estimated noise level in the case of Laser Interferometer Space Antenna or future interferometers with an arm-length comparable to a few astronomical units. Gravitational wave interferometers can then place upper limits on the ultralight dark matter density in the solar system. We find that, under certain assumptions, future interferometers with AU-scale arm-length might probe the dark matter density a few hundred times the local dark matter density, which is measured over a much larger spatial scale.
Forward citations
Cited by 5 Pith papers
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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...
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Probing Quadratically Coupled Ultralight Dark Matter with the Laser Interferometer Space Antenna
LISA forecasts for quadratically coupled ultralight dark matter show competitive or superior sensitivity to terrestrial and astrophysical probes in selected mass windows, free of screening.
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Signatures of Ultralight Dark Matter in Space-Based Laser Interferometers
ULDM oscillations in constants create directional signals in LISA/Taiji that survive TDI processing, with a new local observable improving sensitivity to dilaton-electron coupling d_e by three orders of magnitude over...
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Precision Solar System Dynamics for Ultralight Dark Matter Search
Current interplanetary range measurements could probe ultralight dark matter at masses around 10^{-15} eV if its solar system density were 10^5 times the local value.
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Constraints on Ultralight Scalar and Dark Photon Dark Matter from PPTA-DR3 and EPTA-DR2
Bayesian analysis of PPTA-DR3 and EPTA-DR2 finds no statistically significant ULDM signals and sets 95% CL upper limits on scalar and dark photon dark matter, improving prior bounds in most mass ranges.
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