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Hannover 2013 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 35: Poster I

Q 35.27: Poster

Tuesday, March 19, 2013, 16:00–18:30, Empore Lichthof

Tools for single-ion quantum state preparation and analysis — •Pascal Eich1, Jan Huwer1, 2, Christoph Kurz1, Philipp Müller1, Michael Schug1, and Jürgen Eschner11Universität des Saarlandes, Experimentalphysik, Campus E2 6, 66123 Saarbrücken, Germany — 2ICFO – Institut de Ciències Fotòniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain

Reliable preparation and analysis of quantum states is essential for quantum information applications. Here we demonstrate the required tools for the manipulation of electronic states of a single 40Ca+ ion in the context of quantum repeaters. In the S1/2 ground state, we prepare one of the two Zeeman sublevels by optical pumping and create a coherent superposition using radio frequency pulses. The population in the S1/2 Zeeman sublevels is coherently transferred to one of the Zeeman sublevels of the metastable D5/2 state using a narrowband laser at 729 nm, either via the rapid adiabatic passage technique or by a Rabi pulse.

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