Direct experimental evidence of free-fermion antibunching.
Fermion antibunching was observed on a beam of free noninteracting neutrons. A monochromatic beam of thermal neutrons was first split by a graphite single crystal, then fed to two detectors, displaying a reduced coincidence rate. The result is a fermionic complement to the Hanbury Brown and Twiss effect for photons.
Iannuzzi
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Dipartimento di Fisica, Università di Roma Tor Vergata, I-00133 Roma, Italy.
Orecchini
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Sacchetti
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Facchi
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Pascazio
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