Center for Ultracold Atoms and Quantum Gases, IExP and IQOQI, Innsbruck
Gabriele 
Congratulations Thomas, and we hope to see you soon back at the University!
In collaboration with our theory colleagues from Paris, we have determined the dynamical polarizability of ultracold erbium atoms.
In collaboration with our theory collaborators from Innsbruck (Rick van Bijnen) and Hannover (Falk Wächtler and Luis Santos), we have observed for the first time so-called roton quasiparticles in an ultracold quantum gas of highly magnetic bosonic erbium.
As the first result of our new Erbium-Dysprosium mixture experiment RARE, we achieved for the first time the simultaneous trapping of Erbium and Dysprosium atoms in a magneto-optical trap (MOT).
In collaboration with our theory colleagues from Paris (M. Lepers, J.-F. Wyart and O. Dulieu) we have determined the dynamical polarizability of ultracold erbium atoms in the ground and in one excited state at three particular relevant wavelengths.
