We demonstrate experimentally how the process of Stimulated Raman Adiabatic Passage (STIRAP) can be utilized for efficient coherent internal state transfer in single trapped and laser-cooled Ca ions. The transfer from the D3/2 to the D5/2 state, is detected by a fluorescence measurement revealing the population not transfered to the D5/2 state. A coherent population transfer efficiency at the l...

Atomic antihydrogen has recently been observed at Fermilab [1]. It appears feasible to measure the principal structure, ne structure and Lamb shift of antihydrogen atoms in ight [2]. It is possible to test the proposed techniques and measure cross sections for the relevant atomic processes at relativistic velocities by rst using a proton beam. We propose to perform such a test at the FNAL Boost...