title: Quantification of entanglement by means of convergent iterations.
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.
authors.affiliation: Department of Optics, Palacký University, 772 00 Olomouc, Czech Republic.
authors.forename: Jaroslav
authors.initials: J
authors.lastname: Rehácek
authors.forename: Zdenek
authors.initials: Z
authors.lastname: Hradil