Mixedness and teleportation

S. Bose; V. Vedral

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arxiv quant-ph/9912033 v1 pith:GUFPVJRH submitted 1999-12-07 quant-ph

Mixedness and teleportation

S. Bose , V. Vedral This is my paper

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keywords entropyentangledmixednessthresholdarbitrarilybecomecertainclose

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We show that on exceeding a certain degree of mixedness (as quantified by the von Neumann entropy), entangled states become useless for teleporatation. By increasing the dimension of the entangled systems, this entropy threshold can be made arbitrarily close to maximal. This entropy is found to exceed the entropy threshold sufficient to ensure the failure of dense coding.

Mixedness and teleportation

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