Catalog of candidate ions for trapped
ion quantum computing. The periodic table is shown with the hydrogenic
ions highlighted with links to individual pages. Included
on each page are energy diagrams for the outer electron for each
ion, the relative transition strengths for hyperfine transitions
(useful for locating cooling transitions), links to more
information about the physical properties, isotope information,
and research groups using the ions for various projects. In
addition, several two
electron ion systems have applications for both quantum
computing and optical time standards.