title: Classical information and distillable entanglement
abstract: We establish a quantitative connection between the amount of lost classical information about a quantum state and the concomitant loss of entanglement. Using methods that have been developed for the optimal purification of mixed states, we find a class of mixed states with known distillable entanglement. These results can be used to determine the quantum capacity of a quantum channel which randomizes the order of transmitted signals.
authors.affiliation: Institut fur Physik, Universitat Potsdam, 14469 Potsdam, Germany.
authors.initials: J
authors.lastname: Eisert
authors.initials: T
authors.lastname: Felbinger
authors.initials: P
authors.lastname: Papadopoulos
authors.initials: MB
authors.lastname: Plenio
authors.initials: M
authors.lastname: Wilkens