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Q: Fachverband Quantenoptik und Photonik

Q 42: Ultrakalte Atome (Manipulation und Detektion / Quantengase)

Q 42.2: Talk

Thursday, March 13, 2008, 14:30–14:45, 1C

State-selective microwave potentials on atom chips — •Max F. Riedel^1,2, Pascal Böhi^1,2, Johannes Hoffrogge^1,2, Theodor W. Hänsch^1,2, and Philipp Treutlein^1,2 — ¹Max-Planck-Institut für Quantenoptik, Garching — ²Fakultät für Physik, Ludwig-Maximilians-Universität München

We report on current results of our experiment with microwave near-fields on an atom chip.

The integrated miniaturized microwave guiding structures on our chip allow the generation of microwave near-fields with unusually strong gradients. Through microwave dressing of hyperfine states, these can be used to create state-selective double-well potentials. Such potentials have applications in quantum information processing, the study of Josephson effects, and could be used to entangle atoms via state-selective collisions.