Hartmut Häffner is Assistant Professor of Physics at the University of California, Berkeley, and is also affiliated with Lawrence Berkeley National Laboratory. He received his Ph.D. in physics from the University of Mainz in Germany. He has done postdoctoral work in Mainz, Bangalore, and at NIST (Gaithersburg), and worked as a university assistant at the University of Innsbruck, Austria, as a senior scientist at the Institute for Quantum Optics and Quantum Information, Innsbruck. He has been awarded a Feodor-Lynen fellowship, a Marie Curie fellowship, a START award, and a Sloan fellowship. His research focuses on ion-trap-based quantum information, hybrid quantum systems, quantum simulations, and materials science aspects of ion traps.