Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 32: Poster: Quantum gases, ultracold atoms and molecules

Q 32.70: Poster

Mittwoch, 19. März 2014, 16:30–18:30, Spree-Palais

Investigating a single atom magneto optical trap — •Farina Kindermann, Michael Bauer, Tobias Lausch, Daniel Mayer, Felix Schmidt, and Artur Widera — FB Physik, TU Kaiserslautern Erwin Schrödinger Str. 46, 67663 Kaiserslautern

Single neutral atoms have proven ideal systems to study quantum effects on a microscopic level. In the last years, few or single impurity atoms have been a subject of intense study. Here we present our experimental setup to capture and detect single Cesium atoms as a first step towards impurity physics measurements. By means of fluorescence imaging with a high numerical aperture objective we count the number of atoms and observe MOT dynamics at the single atom level. We systematically investigate the effect of experimentally accessible parameters on signal-to-noise ratio or the atoms' temperature. In addition we investigate the limits of the assumption that atoms are independent, leading to the standard description of the MOT dynamics by Poissonian statistics.