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Distributing CV entanglement over 4 co-propagating orthogonal modes

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arxiv 1811.08388 v1 pith:FTU3ODYJ submitted 2018-11-20 quant-ph

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keywords schemeco-propagatingdistributingentanglementmodemodesorthogonalaccomplished
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We propose a scheme for distributing continuous variable entanglement originally established among a pair of mode between a set of four orthogonal co-propagating modes. This is accomplished by exploiting the possibility of coupling polarization with optical angular momentum provided by the q-plate. Here we present the principle of the proposed scheme with a short feasibility study that shows that the four-modes covariance matrix at the scheme output represent an entangled multi mode system.

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