The HCI collaboration has just published an article in Nature on the quantum logic spectroscopy of ⁴⁰Ar¹³⁺. Congratulations!

Abstract: Precision spectroscopy of atomic systems is an invaluable tool for the study of fundamental interactions and symmetries. Recently, highly charged ions have been...

Our team members Maximilian Zawierucha from the MANFRED team and Tabea Nordmann from the QUACCS team share the second place for the best poster during the poster-session of PTBs PhD-Day (Doktorandentag). Maximilians Poster was on 'Quantum logic for high precision molecular ion spectroscop', and...

A cryogenic radio-frequency ion trap for quantum logic spectroscopy of highly charged ions

Kai Dietze joins the multi ion calcium spectroscopy team as a PhD student. He previsously already did his masters degree with us as a joint Student of Prof. Mehlstäubler and Prof. Schmidt, and recieved his bachelor's degree from Technische Universität Braunschweig. We welcome him to the team and are...

Kai Dietze receives his Master's degree. We congratulate him on this achievement.

The topic of his thesis is:

'Zustandskontrolle und Dynamical Decoupling mit Pulssequenzen für gefangene Ionen'

Compact physics package and fiber delivery of light for Al-Ca Quantum Logic Clock.

Motional Fock states for quantum-enhanced amplitude and phase measurements with trapped ions

The PTB scientific advisory board visits the Highly Charged Ion experiment at QUEST. Photo: A 3-D printed 1:1 model of the Paul trap at the heart of the precision experiment - is examined.

In our experiment we have a 1 W closed-cycle, low-vibration 4 K cryostat which  refrigerates the Paul trap of the highly charged ion (HCI) experiment.  An extreme high vacuum is achieved providing long HCI storage times on  the order of 45 min. A vibration suppression system ensures a  mechanically...

Benjamin Kraus joins the IQLOC team at the Hannover Institute of Technology as a PhD student. He previously studied at the University of Heidelberg and did his master's thesis on nanophotonics at the University of York. We welcome him as a great addition to our team!