lithium

NaLi machine

Atomic mixture of sodium and lithium

Experimental realization of U(1) gauge invariance in ultracold atomic mixtures

This thesis reports on the experimental realization of an elementary building block for analog quantum simulation of a U(1) lattice gauge theory in a mixture of two bosonic quantum gases. Experimentally, the building block is realized by …

Implementing an Optical Accordion Lattice for the Realization of a Quantized Otto Cycle

This thesis presents design and characterization of a versatile optical standingwave trap for lithium atoms. Using this trap, an implementation of a quantized Otto cycle with the sodium-lithium mixture experiment that cools down a cloud of sodium …

Design and Implementation of a Versatile Imaging Objective for Imaging of Ultracold Mixtures of Sodium and Lithium

This thesis presents the design and implementation of a high resolution objective lens for imaging ultracold atomic clouds of sodium and lithium in the NaLi experiment. The lens has been developed using the ray tracing software OSLO. The design …

Spin Dynamics and Feshbach Resonances in Ultracold Sodium-Lithium Mixtures

This thesis presents the investigation of the two-body scattering properties of cold atoms in sodium and lithium-sodium mixtures and their effects on the many body dynamics. Since both species are alkali atoms, the combined spin of both unpaired …

Observation of the Phononic Lamb Shift in a Synthetic Vacuum

This thesis reports on the implementation of the Fröhlich Hamiltonian in an ultracold atomic mixture. To this end, impurity atoms are immersed into a macroscopic Bose-Einstein condensate (BEC). The impurities are tightly trapped in one direction by a …