We present a new framework to study the time variation of fundamental constants in a model-independent way. Model independence implies more free parameters than assumed in previous studies. Using data from atomic clocks based on 87Sr, 171Yb+ and 133Cs, we set bounds on parameters controlling the variation of the fine-structure constant, α, and the electron-to-proton mass ratio, µ. We consider variations on timescales ranging from a minute to almost a day. In addition, we use our results to derive some of the tightest limits to date on the parameter space of models of ultralight dark matter and axion-like particles.
CITATION STYLE
Sherrill, N., Parsons, A. O., Baynham, C. F. A., Bowden, W., Anne Curtis, E., Hendricks, R., … Calmet, X. (2023). Analysis of atomic-clock data to constrain variations of fundamental constants. New Journal of Physics, 25(9). https://doi.org/10.1088/1367-2630/aceff6
Mendeley helps you to discover research relevant for your work.