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.
A Quantum Description of Wave Dark Matter
5 Pith papers cite this work. Polarity classification is still indexing.
5
Pith papers citing it
abstract
We outline a fundamentally quantum description of bosonic dark matter (DM) from which the conventional classical-wave picture emerges in the limit $m \ll 10~\textrm{eV}$. As appropriate for a quantum system, we start from the density matrix which encodes the full information regarding the possible measurements we could make of DM and their fluctuations. Following fundamental results in quantum optics, we argue that for DM it is most likely that the density matrix takes the explicitly mixed form of a Gaussian over the basis of coherent states. Deviations from this would generate non-Gaussian fluctuations in DM observables, allowing a direct probe of the quantum state of DM. Our quantum optics inspired approach allows us to rigorously define and interpret various quantities that are often only described heuristically, such as the coherence time or length. The formalism further provides a continuous description of DM through the wave-particle transition, which we exploit to study how density fluctuations over various physical scales evolve between the two limits and to reveal the unique behavior of DM near the boundary of the wave and particle descriptions.
fields
hep-ph 5years
2026 5representative citing papers
Ultralight dark matter exhibits recoherence due to the solar gravitational potential, yielding formally divergent coherence times at long timescales and enhanced search sensitivity.
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.
The paper formulates dark matter detection in matter-wave interferometers as an open-system problem using Schwinger-Keldysh effective field theory, revealing channel asymmetries and Bose/Pauli factors for elastic scattering.
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.
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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Is the Conventional Picture of Coherence Time Complete? Dark Matter Recoherence
Ultralight dark matter exhibits recoherence due to the solar gravitational potential, yielding formally divergent coherence times at long timescales and enhanced search sensitivity.
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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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Matter-Wave Interferometers as Open-System Dark Matter Detectors
The paper formulates dark matter detection in matter-wave interferometers as an open-system problem using Schwinger-Keldysh effective field theory, revealing channel asymmetries and Bose/Pauli factors for elastic scattering.
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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.