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Hannover 2016 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 58: Poster: Quantum Optics and Photonics IV

Q 58.18: Poster

Thursday, March 3, 2016, 16:30–19:00, Empore Lichthof

Quantum dynamics in spatially resolved two-atom cavity-QED — •Matthias Körber, Andreas Neuzner, Olivier Morin, Stephan Ritter, and Gerhard Rempe — Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching

Embedding an optical emitter in a Fabry-Perot-type optical cavity has become a well-established technique to study the interaction of matter with a single mode of the light field. By extending this system to multiple atoms coupling to the same cavity mode, novel effects and degrees of freedom emerge compared to the single atom case: When an atom pair is driven with a laser transversal to the cavity axis, the difference position of the atoms defines the relative phase with which the atoms couple to the driving laser and the cavity mode. To achieve experimental control over this new degree of freedom, we pin two atoms to the sites of a two-dimensional optical lattice in the plane spanned by the cavity axis and the direction of the driving laser. The relative distance between the occupied lattice sites is determined via fluorescence imaging with single-site resolution.Thereby, the phase difference of the two atoms can be resolved. We show that the intensity and the correlation properties of the light scattered into the cavity strongly depend on this relative phase, and foresee further studies of fundamental aspects of light-matter interaction enabled by our experimental setting.

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