News

Matthias Borchert has successfully defended his dissertation "Challenging the Standard Model by high precision comparisons of the fundamental properties of antiprotons and protons". Congratulations!

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The Quantum Valley Lower Saxony (QVLS) is a joint intiative with founding members Leibniz University Hannover, Technical University Braunschweig, Physikalisch-Technische Bundesanstalt, Albert-Einstein Institute (Max-Planck Society), DLR (German Aerospace Center) and Sartorius AG.

QVLS is endorsed...

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Giorgio Zarantonello has successfully defended his dissertation "Robust high fidelity microwave near-field entangling quantum logic gate". Congratulations!

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Julian Pick is now officially part of the BASE team in Hannover. In his master thesis he will build a 140 GHz Raman laser system for quantum control in Penning traps.

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Microwave trapped-ion quantum logic gates avoid spontaneous emission as a fundamental source of decoherence. However, microwave two-qubit gates are still slower than laser-induced gates and hence more sensitive to fluctuations and noise of the motional mode frequency.

In our paper we propose and...

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We have trapped the first beryllium ions in our cryogenic surface trap. As in our surface traps at room temperature, the ions were loaded by laser ablation from a beryllium wire and subsequent multiphoton ionization. The picture shows a string of three beryllium ions imaged with a CCD camera through...

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This weekend the big meeting of the BASE collaboration took place at CERN. The different groups from Geneva, Mainz and Hannover reported on their progress and results of the last years. The future objectives of the collaboration were also discussed. We are looking forward to further years of...

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The retreat of the research groups of  José Crespo, Piet Schmidt, Tanja Mehlstäubler, Christian Ospelkaus and guests took place this year close to Höchst in the Odenwald. In addition to many interesting scientific talks, this year's newly introduced poster session also offered plenty of time for...

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Nicolás Pulido joins our team at the PTB in Braunschweig as a PhD student. He will deal with quantum information processing in scalable microtraps. For this purpose, he will upgrade our surface trap experiment for upcoming quantum simulation experiments. A warm welcome!

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Malte Niemann succesfully defended his thesis with the title "Design and commissioning of an experiment for sympathetic cooling and coupling of ions in a cryogenic Penning trap". Congratulations!

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