Hybrid systems of laser-cooled trapped ions and ultracold atoms combined in a single
experimental setup have recently emerged as a new platform for fundamental research in …

The prospect of cooling matter down to temperatures that are close to absolute zero raises
intriguing questions about how chemical reactivity changes under these extreme conditions …

The control of physical systems and their dynamics on the level of individual quanta
underpins both fundamental science and quantum technologies. Trapped atomic and …

After decades of improvements in cooling techniques of several atomic species and in
finding methods for the achievement of stable quantum mixtures, the field is now ready for …

Improved control of the motional and internal quantum states of ultracold neutral atoms and
ions has opened intriguing possibilities for quantum simulation and quantum computation …

Pairs of free particles cannot form bound states in an elastic collision due to momentum and
energy conservation. In many ultracold experiments, however, the particles collide in the …

We investigate the interaction of a laser-cooled trapped ion (Ba+ or Rb+) with an optically
confined Rb 87 Bose-Einstein condensate. The system features interesting dynamics of the …

Interactions between quasiparticles mediated by a surrounding environment are ubiquitous
and lead to a range of important effects from collective modes of low-temperature quantum …

As relative systematic frequency uncertainties in trapped-ion spectroscopy are approaching
the low 10− 18 range, motional frequency shifts account for a considerable fraction of the …

Recent years have seen the emergence of a new generation of collision and cold-chemistry
experiments in which cold atoms and ions are brought into contact in a controlled way in …