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Stuttgart 2012 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 35: Poster 2

Q 35.70: Poster

Wednesday, March 14, 2012, 16:30–19:00, Poster.I+II

Rydberg excitation of 40Ca+ by VUV radiation at 123 nm — •Matthias Stappel1,2, Daniel Kolbe1,2, Thomas Feldker1, Julian Naber1, Ferdinand Schmidt-Kaler1, and Jochen Walz1,21Institut für Physik, Johannes Gutenberg-Universität, 55099 Mainz, Deutschland — 2Helmholtz-Institut Mainz, Johannes Gutenberg-Universität, 55099 Mainz, Deutschland

Lasercooled ions in paul traps are one of the most promising candidates for future applications in quantum information. At the same time Rydberg states and the related dipole blockade are a rapidly growing field of atom physics in the past years. By exciting 40Ca+ trapped ions to Rydberg states with VUV (vacuum ultraviolet) laser radiation at 123 nm, we combine these two approaches. First the 40Ca+ ions are trapped and lasercooled in a linear paul trap. In a next step the ions are transferred to the 3D5/2 state and finally excited by radiation at 123 nm to a Rydberg state. Goals of our experiment are the spectroscopy of generated Rydberg states, investigation of Rydberg blockade and entanglement of 40Ca+ ions in an ion crystal. We present the setup of our experiment, the generation of VUV radiation at 123 nm and report on the current status of the experiment.

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