Laser addressing of individual ions in a linear ion trap
Hanns‐Christoph Nägerl, Dietrich G. Leibfried, H. J. Rohde, Gregor Thalhammer, Jürgen Eschner, Ferdinand Schmidt‐Kaler, R. Blatt · Physical Review A · 1999
Single ions in a linear string have been addressed with a tightly focused laser beam and an acousto-optic deflector. The excitation into a long-lived metastable level is detected with a quantum jump technique. Single-quantum bit operations for quantum information processing with trapped ions are shown to be feasible.