6 papers
Towards the Direct Detection of Composite Ultraheavy Dark Matter in Quantum Sensor Arrays
Dorian W. P. Amaral, Erqian Cai, Andrew J. Long +2
Quantum sensor arrays have recently been proposed as a promising platform for the direct detection of ultraheavy dark matter, which is typically assumed to behave as a point-like p…
Magnetic Levitation as a New Probe of Non-Newtonian Gravity
Dorian W. P. Amaral, Tim M. Fuchs, Hendrik Ulbricht +1
We present MORRIS (Magnetic Oscillatory Resonator for Rare-Interaction Studies) and propose the first tabletop search for non-Newtonian gravity due to a Yukawa-like fifth force usi…
Mechanical Sensors for Ultraheavy Dark Matter Searches via Long-range Forces
Juehang Qin, Dorian W. P. Amaral, Sunil A. Bhave +10
Dark matter candidates with masses around the Planck-scale are theoretically well-motivated, and it has been suggested that it might be possible to search for dark matter solely vi…
First Search for Ultralight Dark Matter Using a Magnetically Levitated Particle
Dorian W. P. Amaral, Dennis G. Uitenbroek, Tjerk H. Oosterkamp +1
We perform the first search for ultralight dark matter using a magnetically levitated particle. A sub-millimeter permanent magnet is levitated in a superconducting trap with a meas…
FlowVAT: Normalizing Flow Variational Inference with Affine-Invariant Tempering
Juehang Qin, Shixiao Liang, Christopher Tunnell
Multi-modal and high-dimensional posteriors present significant challenges for variational inference, causing mode-seeking behavior and collapse despite the theoretical expressiven…
Fast Bayesian Inference for Neutrino Non-Standard Interactions at Dark Matter Direct Detection Experiments
Dorian W. P. Amaral, Shixiao Liang, Juehang Qin +1
Multi-dimensional parameter spaces are commonly encountered in physics theories that go beyond the Standard Model. However, they often possess complicated posterior geometries that…