Assembled arrays of Rydberg-interacting atoms

Abstract

Assembled arrays of individual atoms with Rydberg-mediated interactions provide a powerful platform for the simulation of many-body spin Hamiltonians as well as the implementation of universal gate-based quantum information processing. We demonstrate the first realization of Rydberg excitations and controlled interactions in microlens-generated multisite trap arrays of reconfigurable geometry. We utilize atom-by-atom assembly for the deterministic preparation of pre-defined 2D structures of rubidium Rydberg atoms with exactly known mutual separations and selectable interaction strength. By adapting the geometry and the addressed Rydberg state, a parameter regime spanning from weak interactions to strong coupling can be accessed. We characterize the simultaneous coherent excitation of non-interacting atom clusters for the state $57{\mathrm{D}}_{5/2}$ and analyze the experimental parameters and limitations. For configurations optimized for Rydberg blockade utilizing the state $87{\mathrm{D}}_{5/2}$, we observe collectively enhanced Rabi oscillations.

10 pages, 5 figures

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Cited by in corpus (1)

• Model-Based Real-Time Synthesis of Acousto-Optically Generated Laser-Beam Patterns and Tweezer Arrays