Erlangen 2022 – scientific programme

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SYRY: Symposium Rydberg Physics in Single-Atom Trap Arrays

SYRY 2: Rydberg Physics in Single-Atom Trap Arrays 1

SYRY 2.5: Talk

Wednesday, March 16, 2022, 12:15–12:30, Audimax

Rydberg-interacting neutral atoms in a scalable platform of optical tweezers with site-selective addressability — •Dominik Schäffner, Tobias Schreiber, Tilman Preuschoff, Lars Pause, Stephan Amann, Jan Lautenschläger, Malte Schlosser, and Gerhard Birkl — Institut für Angewandte Physik, TU Darmstadt, Schlossgartenstraße 7, 64289 Darmstadt, Germany

In this talk, a versatile platform of optical tweezers is introduced comprising hundreds of focused-beam dipole potentials capable to store laser-cooled atoms with spatial separations in the micrometer regime [1]. Based on micro-fabricated lens arrays, this approach is highly scalable while offering three-dimensional tweezer configurations at no additional cost due to the inherent self-imaging [2]. Site-selective addressability giving precise control over the internal and external atomic degrees of freedom facilitates transport of atoms between sites, coherent coupling of the hyperfine ground states as well as excitation to Rydberg states with individual-atom control [3]. On this basis, defect-free 2D clusters of more than 100 single-atom quantum systems can be created. Furthermore, Rydberg-mediated interactions in assembled atom configurations are demonstrated.

[1] D. Ohl de Mello et. al., Phys. Rev. Lett. 122, 203601 (2019).
[2] M. Schlosser et. al., arXiv, 1902.05424 (2019).
[3] M. Schlosser et. al., J. Phys. B: At. Mol. Opt. Phys 53 144001 (2020).