Journal
SCIENCE
Volume 354, Issue 6315, Pages 1021-1023Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aah3778
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Funding
- European Union FET-Open Xtrack Project HAIRS
- H2020 FET-PROACT Project RySQ
- PALM Labex (project QUANTICA)
- Region Ile-de-France in the framework of DIM Nano-K
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Large arrays of individually controlled atoms trapped in optical tweezers are a very promising platform for quantum engineering applications. However, deterministic loading of the traps is experimentally challenging. We demonstrate the preparation of fully loaded two-dimensional arrays of up to similar to 50 microtraps, each containing a single atom and arranged in arbitrary geometries. Starting from initially larger, half-filled matrices of randomly loaded traps, we obtain user-defined target arrays at unit filling. This is achieved with a real-time control system and a moving optical tweezers, which together enable a sequence of rapid atom moves depending on the initial distribution of the atoms in the arrays. These results open exciting prospects for quantum engineering with neutral atoms in tunable two-dimensional geometries.
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