The quantum logic spectroscopy group is currently looking for several Masters-students for masters-thesis-projects.

Projects at the Aluminum-quantum-logic-spectroscopy group, with focus on frequency stabilization of lasers using optical resonators. Link to flyer.

Projects at the Multi-Ion Calcium...

Atomic clocks operate at extraordinary levels of precision and accuracy, and can be used for searches for new physics beyond the Standard Model of particle physics (SM) by searching for miniscule deviations in their operating frequencies. For example, a hypothetical fifth force between the neutrons...

Our group has secured an ERC Advanced grant to investigate highly-charged ions as optical clocks and for tests of fundamental physics using quantum logic spectroscopy. For more details refer to link.

Especially with such major funding opportunities we are now more than ever looking to fill PhD and...

For their outstanding dissertations in quantum optics, Giorgio Zarantonello and Peter Micke receive the Wilhelm & Else Heraeus Young Physicists Award. For this prestigeous award and the amazing achievement we congratulate them.

For more informations visit the official LUH-announcement.

Till Rehmert joins the molecular ion quantum logic spectroscopy team as a PhD student. He previsously already did his masters degree with us and recieved his bachelor's degree from Leibniz University of Hannover.

Till Rehmert receives his Master's degree. We congratulate him on this achievement.

The topic of his thesis is:

'VECSEL system for coherent manipulation of trapped magnesium ions'

The Quantum logic spectroscopy group has succesfully applied for joint funding together with Roee Ozeri's trapped ions lab at the Weizmann Institute of Science, where we will use tailored quantum states to improve performance of optical clocks.

We have trapped the first ca ions in our new macroscopic blade trap. The ions were loaded  by laser ablation from a calcium target and subsequent multiphoton ionization.

The picture shows our new trap outside the vacuum chambre. The inset shows  the first ion crystal loaded in the trap and imaged...

The Aluminum-quantum-logic team has recently observed coherent excitation of the logic transition in a single trapped Aluminum-ion. Now also coherent excitation of the clock transition was achieved. A scan of the clock transition is shown in the picture with a linewidth of 43Hz (FWHM) for a gaussian...

Alexander Wilzewski joins the Highly Charged Ions team as a PhD student. Previously he received a Bachelor's and Master's degree from Johannes Gutenberg University at Mainz, and joined a US exchange program in 2017. We welcome him to the group!