Ultracold atoms held in a three-dimensional pattern by a web of light beams can now be switched from a superfluid to an insulating state. This achievement may be useful for performing quantum computations.
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Stoof, H. Breaking up a superfluid. Nature 415, 25–26 (2002). https://doi.org/10.1038/415025a
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DOI: https://doi.org/10.1038/415025a
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