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Researchers at Japan's QUP center have demonstrated a new method using sub-eV quantum sensors to directly map low-velocity dark matter distributions, bypassing traditional assumptions about galactic halos. This advancement allows for direct reconstruction of the local dark matter velocity distribution from sensor data, potentially revealing deviations from established Standard Halo Models that previous experiments could not access.
International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles
Sub-electronvolt energy thresholds, now accessible via quantum sensors, unlock a new approach to charting dark matter’s galactic distribution. Previously reliant on assumptions about the dark matter halo, direct detection can now reconstruct the local velocity distribution directly from sensor data. This framework opens previously inaccessible regions of phase space, potentially revealing deviations from established models.
Scientists have established a new framework for detecting dark matter utilising quantum sensors with unprecedented sensitivity. Muping Chen and colleagues from the International Centre for Quantum-field Measurement Systems for Studies of the Universe and Particles (QUP), Japan, Kavli Institute, The University of Tokyo, Graduate University, Theory Centre, and 1 other institutions present a halo-independent method for sub-GeV dark matter direct detection, employing sensors capable of sub-eV energy thresholds. This approach enables access to low dark matter velocities and investigation of deviations from the Standard Halo Model, a task proving challenging for conventional direct detection experiments. By expressing event rates…
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