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Optimal Entanglement Enhancement for Mixed States by Kent, Adrian; Linden, Noah; Massar, Serge is a scholarly article available to read on EtoBox.

What is Optimal Entanglement Enhancement for Mixed States about?

We consider the actions of protocols involving local quantum operations and classical communication (LQCC) on a single system consisting of two separated qubits. We give a complete description of the orbits of the space of states under LQCC and characterise the representatives with maximal entanglement of formation. We thus obtain a LQCC entanglement concentration protocol for a single given state (pure or mixed) of two qubits which is optimal in the sense that the protocol produces, with non-zero probability, a state of maximal possible entanglement of formation. This defines a new entanglement measure, the maximum extractable entanglement.

Author

Kent, Adrian; Linden, Noah; Massar, Serge

Published

1999

Language

EN