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Entanglement of Formation of Bipartite Quantum States

Kai Chen·Sergio Albeverio·Shao-Ming Fei
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Abstract

We give an explicit tight lower bound for the entanglement of formation for arbitrary bipartite mixed states by using the convex hull construction of a certain function. This is achieved by revealing a novel connection among the entanglement of formation, the well-known Peres-Horodecki and realignment criteria. The bound gives a quite simple and efficiently computable way to evaluate quantitatively the degree of entanglement for any bipartite quantum state.

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Kai Chen, Sergio Albeverio, Shao-Ming Fei. 2005-11-16. Entanglement of Formation of Bipartite Quantum States. https://doi.org/10.1103/physrevlett.95.210501

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