Malte Niemann

TL;DR: The Baryon Antibaryon Symmetry Experiment (BASE) as discussed by the authors was designed to perform a stringent test of the combined charge parity and time reversal (CPT) symmetry by comparing the magnetic moments of the proton and the antiproton with high precision.

TL;DR: In this paper, the authors discuss experimental prospects of realizing an alternative approach to a g-factor comparison with single (anti)protons, based on quantum logic techniques proposed by Heinzen and Wineland and by Wineland et al.

TL;DR: An ultra-low-vibration closed-cycle cryogenic ion trap apparatus with one hundred lines for low-frequency signals and eight microwave/radio frequency coaxial feed-lines offers the possibility of implementing a small-scale ion-trap quantum processor or simulator.

TL;DR: In this paper, the Coulomb interaction with a 9Be+ ion trapped in a nearby but separate potential well was used to sympathetically cool protons and antiprotons.

TL;DR: In this paper, the Coulomb interaction was used to sympathetically cool protons and antiprotons in a Penning trap with a single ion trapped in a nearby but separate potential well.