Freiburg 2024 – scientific programme

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A: Fachverband Atomphysik

A 26: Poster V

A 26.9: Poster

Wednesday, March 13, 2024, 17:00–19:00, Tent C

Towards Spin-Resolved Single Atom Detection in Disordered Many-Body Rydberg Systems — •Valentina Salazar Silva, Eduard Braun, Sebastian Geier, Gerhard Zürn, and Matthias Weidemüller — Physikalisches Institut, Heidelberg, Deutschland

Rydberg systems remain a key tool in many areas of research due to their unique properties arising from highly excited electronic states. The mapping of many-body spin systems onto tunable Rydberg states has so far allowed for the observation of unique phenomena, such as the stretched relaxation dynamics of disordered spin systems on intermediate timescales, which cannot be accurately described by mean-field theory. These findings could be explained by an emergent integrability, where the dynamics are governed by pairs composed of nearest neighbor spins. Until now, all the diagnostics have been based on measuring average quantities like densities and magnetization. The next step, building upon our latest results, is to study this emergence of integrability at a microscopic level by enabling local access to pair-correlations. The spatial and spin resolution of single atoms can be achieved by adapting a standard fluorescence imaging scheme, as it has been demonstrated for localized Lithium atoms in a two-dimensional plane. In the case of the heavier Rubidium atoms and under similar conditions, we expect a significant performance improvement. Here we discuss the theoretical calculations and first considerations for the designing of an efficient fluorescence imaging setup, taking direct advantage of the Rydberg-manifold, as well as necessary adaptations for the resolving of correlation functions.

Keywords: Rydberg atoms; Fluorescence; Detection; Correlations; Pairs