Transportable cold atom experiments open up a new path for applications in e. g. geodesy, where the differential gravitational red shift can be measured by comparing two spatially separated atomic clocks. This thesis describes the design and set-up …
Cold atoms have become a major platform for quantum simulation. However, they are typically constrained to a lab environment. This motivated us at the University of Heidelberg to perform a proof-of-concept, in which we tested their compatibility with data-center environments at our project partner site, the Honda Research Institute in Offenbach. The successful realization enables us to take the next steps towards modular and mobile cold atoms set-ups that are compatible with industrial work environments.
In ultracold quantum gases, the interactions between the individual atoms can be controlled by applying magnetic bias fields. As magnetic field fluctuations limit the precision here, typically a feedback loop needs to be employed to regulate the …
The aim of this work is to explore practical implementations of Quantum and Quantum-assisted Machine Learning algorithms and benchmark potential benefits of utilizing quantum phenomena in Quantum-assisted Neural Networks with qubit layers. Two known …
In atomic physics experiments, setting the magnetic field strength allows one to create spin dynamics between atoms, or to tune the interaction between them. This makes stable magnetic fields desirable, but unfortunately no commercially available …
This thesis describes the construction of a second generation, ultracold atomic mixture experiment, aiming for modularity, robustness and compactness. The setup is designed to work with Bose-Fermi (23Na, 40K) and Bose-Bose (23Na, 39K) mixtures. The …
This thesis describes the construction of a new apparatus to study quantum gas mixtures of sodium and potassium. Our experimental approach entails, using two independent two-dimensional magnetooptical traps (2D MOTs) as sources of cold atoms for a …
This thesis discusses technical improvements done at a sodium lithium mixtures experiment, to enable measurements highly sensitive on the magnetic field. An active magnetic field stabilisation for low magnetic fields of less then one gauss was tested …
In this thesis we study the quantum transport of matter waves with ultracold atoms. Such ultracold atom systems provide a very good control and a high flexibility of the parameters of the systems like the interactions, its dimensionality and the …
In this thesis we study the quantum transport of matter waves with ultracold atoms. Such ultracold atom systems provide a very good control and a high flexibility of the parameters of the systems like the interactions, its dimensionality and the …