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We report on improvements extending the capabilities of the atom-by-atom assembler described in [Barredo et al., Science 354, 1021 (2016)] that we use to create fully-loaded target arrays of more than 100 single atoms in optical tweezers, starting from randomly-loaded, half-filled initial arrays.
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D. Barredo, S. de Léséleuc, V. Lienhard, T. Lahaye, and A. Browaeys, An atom-by-atom assembler of defect-free arbitrary 2d atomic arrays , Science 354
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In the worst-case, the Hungarian matching algorithm is known to scale as N 3 N^{3} , however we observe empirically that for the current problem, and for the values of N N up to a few hundreds considered here, the average runtime of our LSAP and reordering algorithm scales roughly as N 2 N^{2}
Cited in the paper.
To reduce the computation time during the experiment, we precalculate a look-up table with the shortest paths and path lengths between all trap pairs. During each assembly cycle, the cost matrix for the LSAP algorithm is found as a submatrix of the look-up table
Cited in the paper.
Cited in the paper.
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A. Browaeys and T. Lahaye, Many-body physics with individually controlled Rydberg atoms , Nat. Phys. 16
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