Quantum computers require many quantum bits to perform complex calculations, but devices with more than a few bits are difficult to program. A device based on five atomic quantum bits shows a way forward. See Letter p.63
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Bartlett, S. A milestone in quantum computing. Nature 536, 35–36 (2016). https://doi.org/10.1038/536035a
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DOI: https://doi.org/10.1038/536035a
