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Journal of Modern Optics

An innovative biphoton double slit experiment

G. Brida, E. Cagliero, Marco Genovese, Marco Gramegna, Carlo Novero, R. Steni, E. Predazzi

Published Apr 1, 2004• 4 citations
Publisher

Abstract

We report on a double slit experiment where indistinguishable correlated photons generated through spontaneous parametric down-conversion, are each sent to a well-defined slit. An analysis of the results allows a test of de Broglie-Bohm mechanics against standard quantum mechanics.
DOI
10.1080/09500340408233631

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We report a two-photon double-slit interference experiment. Two correlated photons, generated by spontaneous parametric downconversion and traveling in different directions, are made to pass through a double slit in such a way that the path of one photon can be identified with that of the other photon. No single-photon interference pattern is observed even if the path is not actually identified, but a spatial interference pattern appears in the joint detection counting rates of the photon pairs. It can easily be shown that these nonlocal phenomena cannot be exhibited by any kind of classical field.