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Quantification of entanglement by means of convergent iterations
Jaroslav Rehácek1, Zdenek Hradil
1Department of Optics, Palacký University, 772 00 Olomouc, Czech Republic.
Physical Review Letters
|April 12, 2003
Abstract:
The relative entropy of entanglement of a given bipartite quantum state is calculated by means of a convergent iterative algorithm. When this state turns out to be nonseparable, the algorithm also provides the corresponding optimal entanglement-witness measurement.