Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 15: Poster 1: Quanteninformation, Quanteneffekte, Laserentwicklung, Laseranwendungen, Ultrakurze Pulse, Photonik
Q 15.91: Poster
Montag, 14. März 2011, 16:30–19:30, P1
Imaging, Addressing and State Detection of Two Ions in an Optical Cavity — •Diana Habicher1, Andreas Stute1, Bernardo Casabone1, Birgit Brandstätter1, Johannes Ghetta1, Andrew McClung1, Tracy Northup1, and Rainer Blatt1,2 — 1Institut für Experimentalphysik, Universität Innsbruck,Technikerstraße 25, 6020 Innsbruck, Austria — 2Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Otto-Hittmair-Platz 1, 6020 Innsbruck, Austria
Entangling two atoms via the mode of an optical cavity is a major goal of cavity quantum electrodynamics. Recent progress towards this goal is presented.
In the experiment, two 40Ca+ ions are stored in a linear ion trap and coupled to the same mode of a high-finesse optical resonator. In order to evaluate the quantum state of the ions, one must implement state tomography, which requires both state detection and single-ion (addressed) rotations. For the necessary state detection, fluorescence detection methods have been implemented, using both a CCD camera and a PMT. To apply the rotations, a custom objective for a 729nm laser has been installed and single-ion addressing has been characterized. Finally, two possible methods to achieve entanglement are discussed.