Classical information and distillable entanglement

Details Classical information and distillable entanglement Classical information and distillable entanglement

1999-07-06

arxiv.org/abs/quant-ph/9907021v2

Phys.Rev.Lett.84:1611,2000

Physics

Quantum Physics

5 pages (RevTeX), 1 figure; typos corrected

Scientific paper

10.1103/PhysRevLett.84.1611

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.

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