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Q: Fachverband Quantenoptik und Photonik

Q 13: Posters: Quantum Optics and Photonics I

Q 13.2: Poster

Montag, 9. März 2020, 16:30–18:30, Empore Lichthof

A versatile quantum gas machine for the study of dynamics far from equilibrium — •Maurus Hans, Celia Viermann, Marius Sparn, Helmut Strobel, and Markus K. Oberthaler — Kirchhoff- Institut für Physik, Universität Heidelberg, Deutschland

Well controlled experiments with degenerate quantum gases allow for the study of isolated many body systems and their dynamics far from equilibrium that are intractable in purely theoretical studies.

In harmonically trapped quasi one dimensional systems the emergence of universal dynamics has been experimentally observed [1,2]. Our next generation quantum gas setup aims at studying the influence of defects, finite size, dimensionality and interactions in this context. For versatility of the trap geometry and realizing homogeneous systems we implement a vertical pancake trap supplemented by a blue detuned vertical beam shaped by a digital micro-mirror device (DMD). We use 39K which features broad Feshbach resonances and allows for tuning of the interaction strength and quenches to bring the system out of equilibrium.

We give an overview of our setup, the route to BEC and the current status of the experiment.

[1] Prüfer, M. et al., Nature 563, 217-220 (2018) [2] Erne, S. et al., Nature 563, 225-229 (2018)