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Negative Entanglement Measure, and What It Implies

Ting Yu·J. H. Eberly
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Abstract

In this paper, we extract from concurrence its variable part, denoted $Λ$, and use $Λ$ as a time-dependent measure of "distance", either postive or negative, from the separability boundary. We use it to investigate entanglement dynamics of two isolated but initially entangled qubits, each coupled to its own environment.

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Ting Yu, J. H. Eberly. 2007-03-10. Negative Entanglement Measure, and What It Implies. https://doi.org/10.1080/09500340701432581

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