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Quantum physics

Indistinguishable from afar

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Imprinting a coherent light pulse on the spins of atoms is standard quantum sorcery. Retrieving the same light pulse from a second, distant set of atoms looks rather like black magic. But it, too, is just quantum mechanics.

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Figure 1: Distant bounds.

References

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  1. Fachbereich Physik, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, Kaiserslautern, D-67663, Germany

    Michael Fleischhauer

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  1. Michael Fleischhauer
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Fleischhauer, M. Indistinguishable from afar. Nature 445, 605–606 (2007). https://doi.org/10.1038/445605a

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