Separability and entanglement of composite quantum systems

Abstract

We provide a constructive algorithm to find the best separable approximation to an arbitrary density matrix of a composite quantum system of finite dimensions. The method leads to a condition of separability and to a measure of entanglement.

4 pages Latex, 1 figure

References in corpus (2)

• Quantifying Entanglement
• Separability criterion and inseparable mixed states with positive partial transposition

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