Bonus

The CH74 inequality is used when testing this statement with a single-channel setup. For 10 points each:
[10m] Name this statement that is usually tested using a two-channel setup standardized by Alain Aspect that measures the polarization of two photons. In 2016, a cosmic test of this statement was carried out by Anton Zeilinger.
ANSWER: Bell’s inequality [or Bell’s theorem; accept Bell test]
[10e] Bell’s theorem can be illustrated using qubits with this property. The EPR paradox involves a pair of particles that have this quantum property.
ANSWER: quantum entanglement [or quantum entangled]
[10h] In 2000, Pan et al. became the first to test Bell’s theorem on more than two particles, utilizing this quantum state. This maximally entangled state is a single three-spin state for which one measurement is enough to test the local hidden variables hypothesis.
ANSWER: GHZ state [or Greenberger–Horne–Zeilinger state]
<Physics>
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TournamentExact Match?HeardPPBEasy %Medium %Hard %
2025 ACF NationalsYes2415.83100%46%13%