Aarhus University Seal / Aarhus Universitets segl

Ion Trap Group

Based on laser-cooled and trapped atomic ions, our research is focused partly on collective effects in light-matter interactions mediated by optical cavity fields, partly on quantized energy transport in so-called Coulomb crystals in various potential landscapes controlled by the combined action of global trap and corrugated optical lattice potentials. A complementarily line of research is devoted to single molecular ion system. Here, the aim is to study internal energy transport at the single quantum level by applying quantum logic spectroscopy techniques. In addition, these systems are employed to investigate collective effects in light-molecule coupling processes in synthesized complex molecular ions incorporating multiple photoactive centers in order to shed light on potential quantum effects in naturally occurring light harvesting complexes. Finally, the limits of quantum mechanics at the macroscopic scale are explored by applying trapped charged nano-particles.