Potsdam University Potsdam Quantum Optics Group

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J. Eisert, T. Felbinger, P. Papadopolous, M. B. Plenio, and M. Wilkens
Classical information and distillable entanglement
Phys. Rev. Lett. 84 (2000) 1611-1614


    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.

[ quant-ph/9907021 ]

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