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Quantum physics

Squeezed ions in two places at once

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Experiments on a trapped calcium ion have again exposed the strange nature of quantum phenomena, and could pave the way for sensitive techniques to explore the boundary between the quantum and classical worlds. See Letter p.336

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Figure 1: Squeezing an ion's positional uncertainty.

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  1. Tracy Northup is at the Institut für Experimentalphysik, Universität Innsbruck, Innsbruck 6020, Austria.,

    Tracy Northup

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  1. Tracy Northup
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Correspondence to Tracy Northup.

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Northup, T. Squeezed ions in two places at once. Nature 521, 295–296 (2015). https://doi.org/10.1038/521295a

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