Klaus Jungmann studied physics at the University of Heidelberg, Germany, and was later a post-doctoral researcher at IBM Almaden Research Center in San Jose, California. He is currently a full professor at the University of Groningen and director of the Kernfysisch Versneller Institute, which oversees a dedicated facility (TRIP) for research on fundamental interactions and symmetries at low energies. His research interests lie at the interface between atomic, particle, and nuclear physics in precision experiments. This includes the determination of fundamental constants and searches for new physics with free muons and the muonium atom.