News from our research group

Moritz von Boehn receives his master's degree. We congratulate him on this achievement!

The title of his thesis is

Modelling of sympathetic Doppler cooling and analysis of probe field induced ac-Stark shifts in an ¹¹⁵In⁺ optical clock

You can find the thesis here.

Robin Stampa receives his master's degree. We congratulate him on this achievement!

The title of his thesis is 

Automatization of the Characterization of Ion Traps

We have the pleasure to have Prof. Dr. Sándor Fekete from TU Braunschweig as our guest in the frame of the excellence cluster "QuantumFrontiers"!
He will give a talk on Monday, 25/07/2022 on "From Geometric Optimization and Swarm Computation to Quantum Computing: Algorithmic Solutions for Difficult...

Carl Grimpe is one of the winners of the "Best Poster Award 2022" at the PhoenixD LaserDay 2022. We congratulate him on this! In his poster, Carl was presenting the "first design of a surface electrode ion-trap chip with integrated optics".

The title of the poster is "Towards optical integrated ion...

WebsEdge Science has published an image film on the "Quantum Valley Lower Saxony (QVLS)". One goal of QVLS is the development of "Quantum Clocks" with whom we can search for dark matter or new physics beyond the standard model.

The video was also shown in a short version on the APS march meeting...

Robin Stampa receives his master's degree. We congratulate him on this achievement!

The title of his thesis is 

Setup of a Spatial Light Modulator for Single-Ion Adressing in Trapped Ion Coulomb Crystals

Leon Schomburg receives his master's degree. We congratulate him on this achievement!

The title of his thesis is

Controlling mixed-species ion Coulomb crystals for optimal cooling and mitigating micromotion induced non-thermal heating

You can find the thesis here.

Electric field noise is a major contributor to the motional heating of trapped ions, resulting in frequency shifts and significant frequency uncertainties in precision spectroscopy, as well as decoherence in quantum simulation. This  becomes even more relevant when extending the systems to 2D or 3D...

We investigate the temperature dependence of the low-frequency vibrational spectrum of an ion Coulomb crystal near the linear to zigzag transition. For zero temperature, the linear to zigzag transition is a second-order phase transition that exhibits, amongst other things, a soft mode, which is a...

Bloomberg Quickshot released a new video about time dilation and clocks on Youtube featuring interviews with Don Lincoln (Fermi Lab), David Hume (NIST) and Tanja Mehlstäubler (PTB/LUH). Very cool!   

You can find the video here.