Ultracold alkaline-earth atoms are used in precision measurements and quantum
simulation. Because of their unique atomic structure, they could enable the study of …

We report on the experimental observation of multiorbital polarons in a two-dimensional
Fermi gas of Yb 173 atoms formed by mobile impurities in the metastable P 0 3 orbital and a …

The orbital Feshbach resonance (OFR) is a recently developed scheme for magnetically
tuning the interactions in closed-shell fermionic atoms. Remarkably, unlike the Feshbach …

We study the impurity problem in a Fermi gas of 173 Yb atoms near an orbital Feshbach
resonance (OFR), where a single moving particle in the 3 P 0 state interacts with two …

This thesis reports on two experiments employing ultracold atoms to realize many-body
physics in the presence of an orbital degree of freedom. In particular, we develop the …

This thesis reports on the comprehensive characterization of intra-and interorbital
interactions in two-orbital ultracold quantum gases of fermionic Yb-171. Owing to their …

Ultracold alkaline-earth atoms have now been widely explored for precision measurements
and quantum simulation. Because of its unique atomic structure, alkaline earth atoms …

This thesis reports on two experiments employing ultracold atoms to realize many-body
physics in the presence of an orbital degree of freedom. In particular, we develop the …

In this thesis, I discuss measurements to study strongly interacting Fermi-Fermi and Fermi-
Bose mixtures with strong population imbalance. We use a mixture of fermionic 6Li in …