Freiburg 2024 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 15: Poster I

A 15.22: Poster

Dienstag, 12. März 2024, 17:00–19:00, Tent A

Towards a Strontium Circular Rydberg Atom Quantum Simulator — •Aaron Götzelmann, Christian Hölzl, Einius Pultinevicius, Moritz Wirth, and Florian Meinert — 5. Physikalisches Institut, Universität Stuttgart

Ensembles of individually trapped highly excited Rydberg atoms have proven to be an excellent platform for quantum simulation of many-body systems. We aim to improve the limited coherence time of state of the art approaches using low-l Rydberg states by using very long lived high-l circular Rydberg states (CRS). We will report on the realization of single atom arrays of individual strontium atoms in an experimental setup which aims to achieve tens of milliseconds lifetimes for CRSs without cryogenic cooling. Specifically, we prepare the array inside a capacitor structure made from indium tin oxide (ITO) thin films, designed to suppress detrimental blackbody decay while providing excellent high-NA optical access. Starting from the preparation of ground-state cooled defect free atom arrays, we will present our path to CRSs via rapid adiabatic passage and coherent microwave coupling between CRSs. With this tool we apply single qubit operations on next-neighboring CRSs. Finally, we will discuss prospects for optical control and imaging of CRS exploiting the second valence electron of strontium.