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Q: Fachverband Quantenoptik und Photonik

Q 6: Quantum Gases and Matter Waves (joint session Q/A)

Q 6.12: Poster

Dienstag, 21. September 2021, 16:30–18:30, P

A new experiment for programmable quantum simulation using ultracold 6Li atoms — •Armin Schwierk, Tobias Hammel, Micha Bunjes, Maximilian Kaiser, Leo Walz, Philipp Preiss, and Selim Jochim — Physikalisches Institut der Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany

Efficient quantum simulation using ultracold atoms is typically limited by a variety of experimental factors like available laser power or the numerical aperture of the objective. These factors strongly limit achievable cycle times to around a few seconds, posing a problem when high statistics and good control of the atoms are needed. We are building a new Lithium-6 experiment, with which we aim to reduce the cycle time to below one second. All parts of the apparatus will be build up from modular blocks to increase adaptability, stability and control over the system.

In this poster, we will present the current state of the development of the experiment. The design evolves around a small octagonal glass cell with a diameter of only 5cm and large optical access of up to 0.85NA vertically and 0.3NA horizontally. The small size of the glass cell enables the use of small and fast tuneable magnetic field coils close to the atoms, allowing versatile control of the magnetic fields. A high flux 2D-MOT as precooling stage will help in reducing the cycle times and in making the whole experiment a lot more compact with a distance of 30cm from 2D-MOT centre to the centre of the glass cell. With this new apparatus, we take a first step towards easily and versatile programmable quantum simulation.