Seminars
IQ Initiative Seminar: Amit Bhoonah (Colorado State University)
FRIDAY, SEPTEMBER 30, 2022
10:00AM – 11:30AM: Allen Hall 321 & Zoom ID: 959 9482 9145 (no password)
First Laboratory Bounds on Ultralight Dark Photon Dark Matter from Precision Atomic Spectroscopy
Ultralight bosonic dark matter has come under increasing scrutiny as a dark matter candidate that has the potential to resolve puzzles in astronomical observation. We demonstrate that high-precision measurements of time variation in the frequency ratios of atomic transitions achieves leading sensitivity to ultralight vector portal dark matter at low masses. These bounds are the first laboratory-based bounds on this class of dark matter models. We propose further measurements that could enhance sensitivity to ultralight dark photons.