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Entanglement detection beyond the CCNR criterion for infinite-dimensions

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arxiv 1204.1612 v2 pith:HE3DX6OS submitted 2012-04-07 quant-ph

classification quant-ph
keywords criterionccnrentanglementstatesbeyondbipartitecomputablecross-norm
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In this paper, in terms of the relation between the state and the reduced states of it, we obtain two inequalities which are valid for all separable states in infinite-dimensional bipartite quantum systems. One of them provides an entanglement criterion which is strictly stronger than the computable cross-norm or realignment (CCNR) criterion.

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