title: Asymptotic manipulations of entanglement can exhibit genuine irreversibility
abstract: It is commonly believed that distillation of entanglement can be, in general, irreversible. Perhaps the strongest evidence is constituted by the existence of the bound entangled states. However, even a single example of state exhibiting this irreversibility has not been found so far. We show that for a family of states the process of distillation of entanglement is truly irreversible. These states have a nonzero amount of bound entanglement and, at most, a very small amount of free entanglement.
authors.affiliation: Institute of Theoretical Physics and Astrophysics, University of Gdansk, 80-952 Gdansk, Poland.
authors.initials: M
authors.lastname: Horodecki
authors.initials: P
authors.lastname: Horodecki
authors.initials: R
authors.lastname: Horodecki