PhD topic: Laser spectroscopy of Be-like krypton ions at the ESR Heavy few-electron ions, such as He-, Li-, and Be-like ions, are ideal atomic systems to study effects of correlation, relativity and quantum [...] experience with lasers, or ions, or detectors. During the PhD period, you will learn about: particle confinement, manipulation and detection at the ESR, ion sources and ion optics, vacuum techniques, and [...] opportunity to work in one of the world's best laboratories for experiments with exotic ions (heavy highly-charged ions). You will be part of a multi-cultural team of excellent scientists, which collaborates