Fig. 1: Large-scale tweezer array.
From: A tweezer array with 6,100 highly coherent atomic qubits
a, Representative single-shot image of single caesium atoms across an 11,998-site tweezer array. Inset, magnified view of a subsection of the stochastically loaded array. b, Averaged image (from 16,000 experimental iterations) of single atoms across an 11,998-site tweezer array. Inset, magnified view of a subsection of the averaged array. Atoms are spaced by 7.2 μm and held in 1,061-nm and 1,055-nm optical tweezers. The contrast is enhanced for visual clarity. c, Schematic of the optical tweezer array generation. Tweezer arrays, generated by two SLMs, at 1,061 nm and 1,055 nm are combined on a polarizing beam splitter (PBS) with orthogonal polarization and focused through an objective with a NA of 0.65 and a field of view (FOV) 1.5 mm in diameter. The direction of gravity is along \(\widehat{y}\). We collect scattered photons from single atoms through the same objective and image them on a qCMOS camera. d, Histogram of filling fraction. We load 6,139 single atoms on average per experimental iteration (51.2% of the array on average), with a relative standard deviation of 1.13% over 16,000 iterations. e, Summary of the key metrics demonstrated in this work. Scale bars, 200 μm.
