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We measure the spontaneous emission lifetime of the D5/2 level of a single Ca+-ion by pii-pulse excitation and quantum state detection. As the trapped ion is well localized we map the standing-wave cavity vacuum field
Abstract. We demonstrate coherent coupling of the quadrupole S1/2D5/2 optical transition of a single trapped 40Ca+ ion to the standing wave field of a high-finesse cavity. The dependence of the coupling on temporal dynamics and spatial variations of the intracavity field is investigated in detail. By precisely controlling the position of the ion in the cavity standing wave field and by selectively...
Summary form only given. Ground state cooling and coherent manipulation of ions in a rf-(Paul) trap is the prerequisite for quantum information experiments with trapped ions. In our experiments a single /sup 40/Ca/sup +/ ion in a conventional Paul trap has been cooled to the ground state of vibration with 99.9% (98%) probability in the axial (radial) trap direction. We use a continuous resolved sideband...
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