MAgnetic Gradient Induced Coupling (MAGIC) Dynamical Decoupling Ultrasensitive Magnetometer Ion Trapping: Technology and Techniques Fault-tolerant Hahn-Ramsey interferometry with pulse sequences of alternating detuning Optimal Control: Error-resistant Gates Robust state preparation of a single trapped ion by adiabatic passage Resonance-enhanced isotope-selective photoionization of YbI for ion trap loading Electrodynamically trapped Yb+ ions for quantum information processing Thermally activated hopping of two ions trapped in a bistable potential well Adaptive state estimation Quantum Zeno paradox Ba+: Coherent excitation of an E2 transition Light-Induced Decoherence in the Driven Evolution of an Atom Raman cooling and heating of two trapped Ba+ ions