  We demonstrate quantum control of $^9$Be$^+$ ions directly implemented by an
optical frequency comb. Based on numerical simulations of the relevant
processes in $^9$Be$^+$ for different magnetic field regimes, we demonstrate a
wide applicability when controlling the comb's spectral properties. We
introduce a novel technique for the selective and efficient generation of a
spectrally tailored narrow-bandwidth optical frequency comb near 313 nm. We
experimentally demonstrate internal state control and internal-motional state
coupling of $^9$Be$^+$ ions implemented by stimulated-Raman manipulation using
a spectrally optimized optical frequency comb. Our pulsed laser approach is a
key enabling step for the implementation of quantum logic and quantum
information experiments in Penning traps.
