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Maximally Entangled Mixed States in two Qubits

Satoshi Ishizaka, Tohya Hiroshima

Published Feb 24, 2006• 35 citations

Abstract

We propose novel mixed states in two qubits, which have a property that the amount of entanglement of these states cannot be increased by any unitary transformation. The corresponding entanglement of formation specified by its eigenvalues gives an upper bound of that for density matrices with the same eigenvalues.

DOI: 10.1007/0-306-47114-0_63

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