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 …

We demonstrate the formation of a single RbCs molecule during the merging of two optical
tweezers, one containing a single Rb atom and the other a single Cs atom. Both atoms are …

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

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 …

Atoms with a highly excited electron, called Rydberg atoms, can form unusual types of
molecular bonds,,–. The bonds differ from the well-known ionic and covalent bonds, not only …

Great advances in precision measurements in the quantum regime have been achieved with
trapped ions and atomic gases at the lowest possible temperatures,–. These successes …

Charged microparticles confined in electrodynamic traps evolve into strongly coupled
Coulomb systems (SCCS) which are the subject of current investigation. Recent results with …

We investigate transport dynamics of a single low-energy ionic impurity in a Bose-Einstein
condensate. The impurity is implanted into the condensate starting from a single Rydberg …

The presence of strong interactions in a many-body quantum system can lead to a variety of
exotic effects. Here we show that even in a comparatively simple setup consisting of a …

We explore the interaction between two trapped ions mediated by a surrounding quantum
degenerate Bose or Fermi gas. Using perturbation theory valid for weak atom-ion …