Open System Quantum Simulations with Cold Atoms, Molecules and Ions

Markus Müller, Sebastian Diehl, Guido Pupillo +1 more

P. Zoller

We will focus here in particular on the engineering the open system dynamics of many particles by a controlled coupling to an environment. We will discuss both the basic theoretical concepts as well as their physical implementation with cold Rydberg atoms and ions.We conclude with an outlook on prospects of quantum information processing of hybrid atomic solid state systems, in particular the coupling of cold atomic clouds to nanomechancial oscillators.

Ana María Rey

Johannes Schachenmayer, Alexander Pikovski, Bihui Zhu +2 more

Experiments with cold atoms/molecules in optical lattices or trapped ions make it possible to observe quantum many-body dynamics with long-range interactions. We develop numerical techniques for these systems and explore connections between simulatability and entanglement.

Leon Karpa, Olivier Dulieu

We propose a platform for observing and controlling the interactions between atomic ions and a quantum gas of polar molecules in the ultracold regime. This approach is based on the combination of several recently developed methods in two so-far complementary research domains: ion-atom collisions and studies of ultracold polar molecules. In contrast to collisions between ions and ground-state atoms, which are dominated by losses due to three-body recombination (TBR) already at densities far below those typical for quantum degenerate ensembles, our proposal makes use of polar molecules, their rich level structure, and sensitivity to electric fields to design effective interaction potentials where ion-neutral TBR losses and molecule-molecule losses due to sticky collisions could be strongly suppressed. This may open a broad range of applications including precise control of collisional properties in molecular ensembles using ions, quantum simulations, and cold quantum chemistry between polyatomic molecules.

R. Blatt