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apr10-offprint-u-sinha.pdf

As one of the postulates of quantum mechanics, Born’s rule tells us how to get probabilities for experimental outcomes from the complex wave function of the system. Its quadratic nature entails that interference occurs in pairs of paths. We present an experiment that sets out to test the correctness of Born’s rule by testing for the presence or absence of genuine three-path interference. This is done using single photons and a three slit aperture.