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Momentum-position realization of the Einstein-Podolsky-Rosen paradox

John C. Howell·Ryan S. Bennink·Sean J. Bentley·R. W. Boyd
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Abstract

We report on a momentum-position realization of the EPR paradox using direct detection in the near and far fields of the photons emitted by collinear type-II phase-matched parametric downconversion. Using this approach we achieved a measured two-photon momentum-position variance product of $0.01\hbar^2$, which dramatically violates the bounds for the EPR and separability criteria.

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John C. Howell, Ryan S. Bennink, Sean J. Bentley, R. W. Boyd. 2003-09-15. Momentum-position realization of the Einstein-Podolsky-Rosen paradox. https://arxiv.org/abs/quant-ph/0309122

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