Irreversibility in asymptotic manipulations of entanglement.
We show that the process of entanglement distillation is irreversible by showing that the entanglement cost of a bound entangled state is finite. Such irreversibility remains even if extra pure entanglement is loaned to assist the distillation process.
Vidal
G
G
Institut für Theoretische Physik, Universität Innsbruck, A-6020 Innsbruck, Austria.
Cirac
J I
JI