Classical Information and Distillable Entanglement
Jens Eisert, Timo Felbinger, Panayiotis Papadopoulos, Martin Bodo Plenio, Martin Wilkens · Physical Review Letters · 2000
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.