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Conditions to Preserve Quantum Entanglement of Quadrature Fields through an Eletctromagnetally Induced Transparency Medium

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Abstract

We study the entanglements among three quadrature fields of electromagnetic waves, where two of them interacting through an electromagnetically induced transparency (EIT) medium while two of them generated by a two-mode squeezed state. We show the conditions to preserve non-separation criteria within the range of suitable parameters. The results in this work provide a starting point to establish quantum devices of lights.

© 2008 Optical Society of America

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