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arXiv · 1203.4719

Bounds for Entanglement via an Extension of Strong Subadditivity of Entropy

Eric A. Carlen·Elliott H. Lieb
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Abstract

We prove lower bounds for the entanglement of formation and the squashed entanglement for any a bipartite density matrix in terms of the conditional entropy of the bipartite state with respect to either of its partial traces, and prove that these bounds are sharp by constructing a new class of states whose entanglements can be computed, and for which the bounds are saturated.

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Eric A. Carlen, Elliott H. Lieb. 2012-03-27. Bounds for Entanglement via an Extension of Strong Subadditivity of Entropy. https://doi.org/10.1007/s11005-012-0565-6

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