Third-order interference and a principle of `quantumness'
arXiv:1103.0638
Abstract
Are there physical, probabilistic or information-theoretic principles which characterize the quantum probabilities and distinguish them from the classical case as well as from other probability theories, or which reveal why quantum mechanics requires its very special mathematical formalism? The paper identifies the fundamental absence of third-order interference as such a principle of `quantumness'. Considering three-slit experiments, the concept of third-order interference was originally introduced by Sorkin in 1994.
arXiv comment7 pages, 1 figure
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