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Analysis of Elliptically Polarized Maximally Entangled States for Bell Inequality Tests

Abstract : When elliptically polarized maximally entangled states are considered, i.e., states having a non random phase factor between the two bipartite polarization components, the standard settings used for optimal violation of Bell inequalities are no longer adapted. One way to retrieve the maximal amount of violation is to compensate for this phase while keeping the standard Bell inequality analysis settings. We propose in this paper a general theoretical approach that allows determining and adjusting the phase of elliptically polarized maximally entangled states in order to optimize the violation of Bell inequalities. The formalism is also applied to several suggested experimental phase compensation schemes. In order to emphasize the simplicity and relevance of our approach, we also describe an experimental implementation using a standard Soleil-Babinet phase compensator. This device is employed to correct the phase that appears in the maximally entangled state generated from a type-II nonlinear photonﰀpair source after the photons are created and distributed over fiber channels.
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Submitted on : Monday, July 16, 2012 - 10:45:54 AM
Last modification on : Tuesday, December 7, 2021 - 4:04:10 PM
Long-term archiving on: : Wednesday, October 17, 2012 - 2:26:22 AM

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Anthony Martin, Jeanloup Smirr, Florian Kaiser, Eleni Diamanti, Amandine Issautier, et al.. Analysis of Elliptically Polarized Maximally Entangled States for Bell Inequality Tests. Laser Physics, MAIK Nauka/Interperiodica, 2012, 22 (6), pp.1105-1112. ⟨10.1134/S1054660X12060060⟩. ⟨hal-00718097⟩

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