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Heidelberg 2015 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 44: Quantum Gases: Miscellaneous

Q 44.1: Group Report

Wednesday, March 25, 2015, 14:30–15:00, P/H2

A single neutral atom impurity in an ultracold Bose gas — •Farina Kindermann, Michael Bauer, Tobias Lausch, Daniel Mayer, Felix Schmidt, and Artur Widera — TU Kaiserslautern, FB Physik, Erwin-Schrödinger-Str. 46, 67663 Kaiserslautern

Recently hybrid systems of single particles immersed in a many body system have been a subject of intense interest to study, e.g. impurity-bath interactions. We report on an experiment to combine an ultracold Rb87 cloud with a single neutral Cesium atom. The experimental apparatus features a short cycle time, facilitated by an evolutionary algorithm optimizing various processes in the experimental cycle. Controlled doping of the cloud can be achieved with a species selective lattice which has an almost zero potential for the Rb cloud but at the same time serves as a conveyor belt for the Cs atoms. We will focus on the dynamics of single atoms in a 1D lattice driven by an optical molasses and on the combination of single atoms with the ultracold gas.

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