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arXiv · 2207.06500

In-situ equalization of single-atom loading in large-scale optical tweezers arrays

Kai-Niklas Schymik·Bruno Ximenez·Etienne Bloch·Davide Dreon·Adrien Signoles·Florence Nogrette·Daniel Barredo·Antoine Browaeys·Thierry Lahaye
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Abstract

We report on the realization of large assembled arrays of more than 300 single $^{87}$Rb atoms trapped in optical tweezers in a cryogenic environment at $\sim4$~K. For arrays with $N_{\rm a}=324$ atoms, the assembly process results in defect-free arrays in $\sim37\%$ of the realizations. To achieve this high assembling efficiency, we equalize the loading probability of the traps within the array using a closed-loop optimization of the power of each optical tweezers, based on the analysis of the fluorescence time-traces of atoms loaded in the traps.

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Kai-Niklas Schymik, Bruno Ximenez, Etienne Bloch, Davide Dreon, Adrien Signoles, Florence Nogrette, Daniel Barredo, Antoine Browaeys, Thierry Lahaye. 2022-07-13. In-situ equalization of single-atom loading in large-scale optical tweezers arrays. https://doi.org/10.1103/physreva.106.022611

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