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Maximizing the entanglement of two mixed qubits

W. J. Munro·D. F. V. James·A. G. White·P. G. Kwiat
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Abstract

Two-qubit states occupy a large and relatively unexplored Hilbert space. Such states can be succinctly characterized by their degree of entanglement and purity. In this letter we investigate entangled mixed states and present a class of states that have the maximum amount of entanglement for a given linear entropy.

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W. J. Munro, D. F. V. James, A. G. White, P. G. Kwiat. 2001-03-20. Maximizing the entanglement of two mixed qubits. https://doi.org/10.1103/physreva.64.030302

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