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Trapped-ion quantum sensors have become highly sensitive tools for the search of physics beyond the Standard Model. Recently, stringent tests of local Lorentz-invariance (LLI) have been conducted with precision spectroscopy in trapped ions. We here elaborate on robust radio-frequency composite-pulse...

After more than three years of postdoctoral research in our group, Laura has moved back to Amsterdam to start as an Assistant Professor at the Vrije Universiteit (VU) Amsterdam. In Amsterdam, Laura will develop her research line in precision quantum metrology with trapped ions for tests of...

Lars worked in our joint SFB project A07 with Luis Santos on the dynamics of Coulomb crystals and investigated phase transitions and energy transport with topological defects from classical to quantum. After many nice joint publications between our groups, Lars upgrades himself now to Dr. Lars...

In this work we propose to use Hermite-Gaussian (HG) modes in photonic integrated circuits (PICs) for precision spectroscopy of dipole-forbidden atomic-clock transitions such as the octupole (E3) transition of the Yb-173 ion.

In this paper we describe our bichromatic UV detection system for atomically-resolved imaging of ions, which is part of our In+ multi-ion clock.