Randomized benchmarking using nondestructive readout in a two-dimensional atom array

Nikolov, B. and Diamond-Hitchcock, E. and Bass, J. and Spong, N. L. R. and Pritchard, J. D. (2023) Randomized benchmarking using nondestructive readout in a two-dimensional atom array. Physical Review Letters, 131 (3). 030602. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.131.030602)

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Abstract

Neutral atoms are a promising platform for scalable quantum computing, however prior demonstration of high fidelity gates or low-loss readout methods have employed restricted numbers of qubits. Using randomized benchmarking of microwave-driven single-qubit gates, we demonstrate average gate errors of 7(2) × 10−5 on a 225 site atom array using conventional, destructive readout. We further demonstrate a factor of 1.7 suppression of the primary measurement errors via low-loss, non-destructive and state-selective readout on 49 sites whilst achieving gate errors of 2(9) × 10−4.