In a stream of photons, the particles tend to bunch together, but electrons in a beam do the opposite. At last, this quantum effect for free electrons — the Hanbury Brown–Twiss anticorrelation — has been seen experimentally.
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Spence, J. Spaced-out electrons. Nature 418, 377–379 (2002). https://doi.org/10.1038/418377a
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DOI: https://doi.org/10.1038/418377a
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