NaLi machine

The Kondo effect is one of the hallmarks of condensed-matter physics. It describes the peculiar interactions between previously non-interacting Fermions, which are induced by a single spin impurity at a certain temperature. Despite (or maybe because of) its large interest as a benchmark for various theoretical frameworks, it is typically quite hard to find accessible introductions in the literature. Here, I will give a very naive interpretation of the Kondo effect and discuss its possible observation in ultracold atomic gases.

Dynamical gauge fields are a fundamental concept of high-energy physics. However, learning about them typically takes enormous amounts of time and effort. As such, they are typically a bit mystical to students (including me) of other fields of physics like condensed-matter or AMO. Here, we will give a simple introduction into some of the concepts that might allow for the quantum simulation of these theories with ultracold atomic gases.The reader should know about second quantization and the basics of quantum mechanics as the arguments are based on this formalism.

In ultracold quantum gases, the interactions between the individual atoms can be controlled by applying magnetic bias fields. As …

This thesis reports on the experimental realization of an elementary building block for analog quantum simulation of a U(1) lattice …

In the fundamental laws of physics, gauge fields mediate the interaction between charged particles. An example is quantum …

In atomic physics experiments, setting the magnetic field strength allows one to create spin dynamics between atoms, or to tune the …

This thesis presents design and characterization of a versatile optical standingwave trap for lithium atoms. Using this trap, an …

This thesis presents the design and implementation of a high resolution objective lens for imaging ultracold atomic clouds of sodium …

This thesis presents the investigation of the two-body scattering properties of cold atoms in sodium and lithium-sodium mixtures and …

This thesis reports on the implementation of the Fröhlich Hamiltonian in an ultracold atomic mixture. To this end, impurity atoms are …

In contrast to classical empty space, the quantum vacuum fundamentally alters the properties of embedded particles. This paradigm shift …

This thesis discusses technical improvements done at a sodium lithium mixtures experiment, to enable measurements highly sensitive on …