A recent rejuvenation of experimental and theoretical interest in the physics of few-body
systems has provided deep, fundamental insights into a broad range of problems. Few-body …

Isolating neutral and charged particles from the environment is essential in precision
experiments. For decades, this has been achieved by trapping ions with radio-frequency …

We report the trapping of ultracold neutral Rb atoms and Ba+ ions in a common optical
potential in absence of any radio frequency (rf) fields. We prepare Ba+ at 370 μ K and …

The electronic and motional degrees of freedom of trapped ions can be controlled and
coherently coupled on the level of individual quanta. Assembling complex quantum systems …

Long trapping times, as well as low heating and decoherence rates, essentially isolating
individual particles from the environment, are crucial ingredients for controlling these …

Optical trapping and ions combine unique advantages of independently striving fields of
research. Light fields can form versatile potential landscapes, such as optical lattices, for …

Ultracold atomic samples doped with charged particles is a nascent field marrying two
usually well-separated fields, namely trapped ions and ultracold atoms. Since the original …

Alkaline-earth and alkali-metal mixtures have an electronic structure that is perfect for laser
cooling. This makes them highly attractive for trapping and laser cooling experiments …

Ultracold molecules, ie molecules cooled down below 1 mK are subject of interdisciplinary,
fast-growing research due to their manifestly quantum nature. The progress in the field of …

Ion–atom interactions are a comparatively recent field of research that has drawn
considerable attention due to its applications in areas including quantum chemistry and …