The Afshar experiment is an optical experiment, devised and carried out by Shahriar Afshar in 2004, which investigates the principle of complementarity in quantum mechanics. The result of the experiment, that a grid of wires can be ignored when both slits are open, is in accordance with the standard predictions of quantum mechanics; however, it is controversially claimed to violate complementarity and specifically the Englert–Greenberger duality relation; others disagree.
Read more about Afshar Experiment: Overview, History, Experimental Setup, Interpretation, Specific Critiques
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