Abstract
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 40Ca+ ions. The transfer from the D3/2 to the D5/2 state, is detected by a fluorescence measurement revealing the population not transferred to the D5/2 state. A coherent population transfer efficiency at the level of 95% in a set-up allowing for the internal state detection of individual ions in a string has been obtained.
Highlights
DEUTSCHE PHYSIKALISCHE GESELLSCHAFT possible if an optical Raman transition is driven
Possible if an optical Raman transition is driven. This process is referred to as stimulated Raman adiabatic passage (STIRAP) [14]–[16], and it has previously been demonstrated in experiments spanning from transitions between metastable states being part of atomic or molecular -systems [15, 16] via excitation of high lying electronic states in an atomic ladder system [17]–[19] to efficient atomic beam deflection [20]–[22]
We report on an efficient STIRAP process between the 3D3/2 and 3D5/2 metastable states in single laser-cooled 40Ca+ ions
Summary
DEUTSCHE PHYSIKALISCHE GESELLSCHAFT possible if an optical Raman transition is driven. We report on an efficient STIRAP process between the 3D3/2 and 3D5/2 metastable states in single laser-cooled 40Ca+ ions.
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