Entanglement Teleportation via Werner States

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  • 10 July 1999
Abstract
The fidelity and quantum entanglement are studied for quantum teleportation of an entangled state through a noisy channel. One may conjecture that quantum teleportation preserves the nature of quantum correlation in the original entangled state if the channel is quantum-mechanically correlated. However we find that the quantum entanglement of the original state can be lost during the teleportation even when the channel is quantum correlated. We find the minimum degree of quantum entanglement required for the channel to teleport quantum entanglement. It is found that the fidelity strongly depends on the initial entanglement of the original state.

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