This topical review addresses how Rydberg atoms can serve as building blocks for
emerging quantum technologies. Whereas the fabrication of large numbers of artificial …

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 …

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 …

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 …

Recently, two independent experiments reported the observation of long-lived polarons in a
Bose-Einstein condensate, providing an excellent setting to study the generic scenario of a …

Induced interactions and bound states of charge carriers immersed in a quantum medium
are crucial for the investigation of quantum transport. Ultracold atom-ion systems can …

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 …