We've known since the late 1920s that the Universe is expanding. However, the expansion rate currently inferred from measurements of the cosmic microwave background now disagrees with that obtained from supernova measurements. Over the past few …
The axion is a hypothetical particle motivated by the strong CP problem of elementary particle physics and by the dark matter problem of cosmology. Cold dark matter axions are naturally produced during the QCD phase transition in the early universe …
For two decades, the Brookhaven $g-2$ measurement has remained a tantalizing deviation from the SM prediction and a potential indication for physics beyond the SM (BSM). Soon the new Fermilab $g-2$ measurement will publish its first data. In view of …
The recent observations of gravitational waves have opened new opportunities in astrophysics, cosmology and fundamental physics, some of which can be explored using atom interferometers. These include the formation of supermassive black holes, …