Quantum sensing and metrology use coherent superposition states of quantum systems to
detect and measure physical effects of interest. Their sensitivity is typically limited by the …

Laser cooling exploits the physics of light scattering to cool atomic and molecular gases to
close to absolute zero. It is the crucial initial step for essentially all atomic gas experiments in …

Collisional complexes, which are formed as intermediate states in molecular collisions, are
typically short-lived and decay within picoseconds. However, in ultracold collisions involving …

Molecules containing short-lived, radioactive nuclei are uniquely positioned to enable a
wide range of scientific discoveries in the areas of fundamental symmetries, astrophysics …

The detection of variations of fundamental constants of the Standard Model would provide
us with compelling evidence of new physics, and could lift the veil on the nature of dark …

Over the past decade, tremendous progress has been made to extend the tools of laser
cooling and trapping to molecules. Those same tools have recently been applied to …

Currently, there is great interest in laser cooling of barium monofluoride (BaF) molecules for
precision tests of fundamental symmetries. We use high-resolution absorption spectroscopy …

By reducing both the internal and translational temperature of any species down to a few
kelvins, the buffer-gas-cooling (BGC) technique has the potential to dramatically improve the …

Aluminium monofluoride (AlF) is a promising candidate for laser cooling and trapping at high
densities. We show efficient production of AlF in a bright, pulsed cryogenic buffer gas beam …

We analytically show that the effective interaction potential between microwave-shielded
polar molecules consists of an anisotropic van der Waals–like shielding core and a modified …