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A: Fachverband Atomphysik

A 25: Poster IV

A 25.5: Poster

Mittwoch, 13. März 2024, 17:00–19:00, Tent A

Optical tweezer for immersion of single Cs impurities in an ultracold Rb bath — •Levi Geier, Sabrina Burgardt, Silvia Hiebel, Julian Feß, and Artur Widera — Department of Physics and Research Center OPTIMAS, University of Kaiserslautern-Landau, Kaiserslautern 67663, Germany

Optical tweezers, i.e. tightly focussed laserbeams, have evolved into versatile tools in the study of many-body quantum systems with control on the single-particle level. Their range of application is very broad since devices such as spatial light modulators and acousto-optical deflectors allow arbitrary and time-dependent optical potentials. In the scope of this work an optical tweezer setup based on an acousto-optical defletor is presented, which will be used to control single Caesium atoms dynamically inside a 3-dimensional Rubidium BEC. As optical tweezers rely on the optical dipole force only, manipulation of the atomic states is enabled, and coherence is preserved. We aim to investigate the coherence dynamics of a single Caesium qubit when immersed in a Rubidium BEC.

Keywords: Optical Tweezer; Single impurities; Rb BEC