APEC Seminar (Astronomy - Particle Physics - Experimental Physics - Cosmology)

Speaker: Gordan Krnjaic (Fermilab)
Title: Gravitational Direct Detection of Dark Matter
Date (JST): Mon, Apr 15, 2019, 13:30 - 14:30
Place: Seminar Room A
Related File: 2285.pdf
Abstract: The only coupling dark matter is guaranteed to have with the standard model is through gravity. Here we propose a concept for direct dark matter detection using only this gravitational coupling, enabling a new regime of detection. Leveraging dramatic advances in the ability to create, maintain, and probe quantum states of massive objects, we suggest that an array of quantum-limited impulse sensors may be capable of detecting the correlated gravitational force created by a passing dark matter particle. We present two concrete realizations of this scheme, using either mechanical resonators or freely-falling masses. With currently available technology, a meter-scale apparatus of this type could detect any dark matter candidate around the Planck mass or heavier.