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Type-II parametric down conversion in the Wigner-function formalism. Entanglement and Bell's inequalities

Alberto Casado·Trevor W. Marshall·Emilio Santos
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Abstract

We continue the analysis of our previous articles which were devoted to type-I parametric down conversion, the extension to type-II being straightforward. We show that entanglement, in the Wigner representation, is just a correlation that involves both signal and vacuum fluctuations. An analysis of the detection process opens the way to a complete description of parametric down conversion in terms of pure Maxwell electromagnetic waves.

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Alberto Casado, Trevor W. Marshall, Emilio Santos. 1997-11-19. Type-II parametric down conversion in the Wigner-function formalism. Entanglement and Bell's inequalities. https://doi.org/10.1364/josab.15.001572

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