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 …

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 …

Single atoms movable from one place to another would enable a flying quantum memory
that can be useful for dynamic quantum computing architectures. Guided atoms, eg, by …

We theoretically investigate the trap-assisted formation of complexes in atom-ion collisions
and their impact on the stability of the trapped ion. The time-dependent potential of the Paul …

Experimental setups that study laser-cooled ions immersed in baths of ultracold atoms
merge the two exciting and well-established fields of quantum gases and trapped ions …

Quantum coherent control of collisions beyond the ultracold regime can face a major
challenge due to the incoherent addition of different partial-wave contributions to the total …

Rate constants for the charge-transfer reaction between N 2 H+ and Rb in the millikelvin
regime are measured in an ion-atom hybrid trap and are found to be lower than the …

In many natural and engineered systems, unknown quantum channels act on a subsystem
that cannot be directly controlled and measured, but is instead learned through a …

We study the dynamics of phonon-mediated qubit-qubit interactions between trapped ions in
the presence of an ultracold atomic gas. By deriving and solving a master equation to …

We calculate accurate potential-energy curves for a ground-state He+ ion interacting with a
He atom in the lowest-energy metastable S 3 electronic state. We employ the full …