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arxiv: 1204.6052 · v2 · pith:SAUZ56W2new · submitted 2012-04-26 · 🪐 quant-ph

A Necessary and Sufficient Condition for Entanglement Witness

classification 🪐 quant-ph
keywords characterizationentanglementwitnessapproachconditioncriterionintroducemultipartite
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In this paper we introduce a criterion for the characterization of Entanglement Witness for multipartite quantum systems. Our approach is based on the characterization of the "tangent space" to the set of pure product states.

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