Ground state cooling, quantum state engineering and study of decoherence of ions in Paul traps

F. Schmidt-Kaler, Ch. Roos, H. C. Naegerl +12

We investigate single ions of ${}^{40}C{a}^{+}$ in Paul traps for quantum information processing. Superpositions of the S${}_{1/2}$ electronic ground state and the metastable D${}_{5/2}$ sta…