Photoassociation is the process in which two colliding atoms absorb a photon to form an
excited molecule. The development of laser-cooling techniques for producing gases at …

We report on the attainment of Bose-Einstein condensation with ultracold strontium atoms.
We use the Sr 84 isotope, which has a low natural abundance but offers excellent scattering …

We have achieved Bose-Einstein condensation of Ca 40, the first for an alkaline earth
element. The influence of elastic and inelastic collisions associated with the large ground …

We present a detailed experimental and theoretical study of the effect of nuclear spin on the
performance of optical lattice clocks. With a state-mixing theory including spin-orbit and …

Using a narrow intercombination line in alkaline earth atoms to mitigate large inelastic
losses, we explore the optical Feshbach resonance effect in an ultracold gas of bosonic Sr …

With ultracold Sr 88 in a 1D magic wavelength optical lattice, we performed narrow-line
photoassociation spectroscopy near the S 0 1-P 1 3 intercombination transition. Nine least …

We present results from two-photon photoassociative spectroscopy of the least-bound
vibrational level of the X Σ g+ 1 state of the Sr 2 88 dimer. Measurement of the binding …

Isotope-shift spectroscopy with narrow optical transitions provides a benchmark for atomic
structure calculations and has also been proposed as a way to constrain theories predicting …

It is possible to tune the scattering length for the collision of ultracold S 0 1 ground-state
alkaline-earth-metal atoms using an optical Feshbach resonance. This is achieved with a …

Optical Feshbach resonances (OFRs) have generated significant experimental interest in
recent years. These resonances are promising for many-body physics experiments, yet the …