An experimental researcher whose team compared the Hanbury Brown and Twiss effect in two helium isotopes. Detecting individual released atoms revealed enhanced close pairs for bosons and suppressed pairs for fermions, making their different exchange statistics directly observable.[ref]
Comparison of the Hanbury Brown-Twiss effect for bosons and fermions by T. Jeltes and others. Abstract, pp. 3–4 and Fig. 2: isotope comparison and pair correlations
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