Quantum Clocks and Complex Systems


The Research Group QUEST 2 "Quantum Clocks and Complex Systems" focuses on the development of a new generation of optical frequency standards based on Coulomb crystals of trapped ions and the study of non-linear and non-equilibrium dynamics therein. With our approach, the short-term instability of ion-based clocks can be improved significantly beyond the present state-of-the-art, enabling practical applications such as relativistic geodesy. In our experiment, we aim to achieve a total relative frequency uncertainty of a few parts in 1019. Ion Coulomb crystals are a basis for precision spectroscopy in quantum-correlated systems and pave the way for tests of fundamental theories and the search of new physics beyond the Standard Model.

The excellent control that is possible over trapped and laser-cooled ions allows interesting experiments to be performed on the physics of atomic many-body systems. We study the nonlinear and non-equilibrium dynamics of complex systems and use ion Coulomb crystals for the emulation of physical systems that are otherwise difficult to access. This scientific research ranges from the observation of phase transitions and topological defects to nanofriction and transport dynamics in self-organized systems.

Erwartungen an eine wichtige Zukunftstechnologie: Symposium zu Quantentechnologien in München

Die Bayerische Akademie der Wissenschaften (BAdW) veranstaltete mit Unterstützung des Munich Quantum Valley (MQV) das Symposium „Quantentechnologien. Erwartungen an eine wichtige Zukunftstechnologie“ mit hochkarätigen Vorträgen.

Quantentechnologien haben das Potential, Wissenschaft, Gesellschaft und Wirtschaft tiefgreifend zu prägen. Aber wo stehen die Quantentechnologien heute? Und in welcher Anwendung könnten sie künftig den größten Nutzen bringen? Das und mehr thematisierte das Symposium, das die BAdW in Zusammenarbeit mit dem MQV am 12. April  2024 in München veranstaltete.

Vortragende waren:

Prof. Dr. Tanja Mehlstäubler (PTB Braunschweig / Leibniz Universität Hannover),

Prof. Dr. Gerhard Rempe (MPI für Quantenoptik),

Prof. Dr. Christian Degen (ETH Zürich), 

Prof. Dr. Rainer Blatt (Universität Innsbruck / Österreichische Akademie der Wissenschaften / Alpine Quantum Technologies GmbH).


Die Vorträge finden sich hier


WebsEdge Science released a video on the "Quantum Valley Lower Saxony (QVLS)", including footage from our laboratory.

You can find the video here

Bloomberg TV produced a film about time dilation and clocks based on interviews with Don Lincoln (Fermi Lab), David Hume (NIST) and Tanja Mehlstäubler (PTB/LUH). 
The video "Atomic Clocks are Reinventing Time" is published on Bloomberg TV and YouTube.

You can find the video here.