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Partial transposition as a direct link between concurrence and negativity

URN to cite this document:
urn:nbn:de:bvb:355-epub-317632
Eltschka, Christopher ; Tóth, Géza ; Siewert, Jens
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Date of publication of this fulltext: 29 Apr 2015 10:17


Abstract

Detection of entanglement in bipartite states is a fundamental task in quantum information. The first method to verify entanglement in mixed states was the partial-transpose criterion. Subsequently, numerous quantifiers for bipartite entanglement were introduced, among them concurrence and negativity. Surprisingly, these quantities are often treated as distinct or independent of each other. The ...

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