Entanglement Teleportation via Werner States

Details Entanglement Teleportation via Werner States Entanglement Teleportation via Werner States

1999-07-10

arxiv.org/abs/quant-ph/9907041v2

Phys.Rev.Lett.84:4236,2000

Physics

Quantum Physics

4pages, 3figures

Scientific paper

10.1103/PhysRevLett.84.4236

Transfer of entanglement and information is studied for quantum teleportation of an unknown entangled state through noisy quantum channels. We find that the quantum entanglement of the unknown state can be lost during the teleportation even when the channel is quantum correlated. We introduce a fundamental parameter of correlation information which dissipates linearly during the teleportation through the noisy channel. Analyzing the transfer of correlation information, we show that the purity of the initial state is important in determining the entanglement of the replica state.

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