2019/12/09 by Y. Wang, S. Shevate, T. M. Wintermantel +3
Physics and Astronomy · #physics.atom-ph #cond-mat.quant-gas #quant-ph
paper · pdf · doi:10.1038/s41534-020-0285-1
published as npj Quantum Information, 6, 54 (2020)
arxiv created 2019/12/09 · arxiv updated 2021/05/19
We present programmable two-dimensional arrays of microscopic atomic ensembles consisting of more than 400 sites with nearly uniform filling and small atom number fluctuations. Our approach involves direct projection of light patterns from a digital micromirror device with high spatial resolution onto an optical pancake trap acting as a reservoir. This makes it possible to load large arrays of tweezers in a single step with high occupation numbers and low power requirements per tweezer. Each atomic ensemble is confined to ∼ 1 μm3 with a controllable occupation from 20 to 200 atoms and with (sub)-Poissonian atom number fluctuations. Thus they are ideally suited for quantum simulation and for realizing large arrays of collectively encoded Rydberg-atom qubits for quantum information processing.