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19 April 2024

» arxiv » quant-ph/9711042

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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 ;
Date:	19 Nov 1997
Subject:	quant-ph
Affiliation:	School of Engineering, Univ. of Seville, Spain
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.
Source:	arXiv, quant-ph/9711042
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