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Teleportation via thermally entangled state of a three-qubit Heisenberg XX ring

Ye Yeo
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Abstract

We consider quantum teleportation using the thermally entangled state of a three-qubit Heisenberg XX ring as a resource. Our investigation reveals interesting aspects of quantum entanglement not reflected by the pairwise thermal concurrence of the state. In particular, two mixtures of different pairs of W states, which result in the same concurrence, could yield very differrent average teleportation fidelities.

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Ye Yeo. 2003-02-12. Teleportation via thermally entangled state of a three-qubit Heisenberg XX ring. https://doi.org/10.1103/physreva.68.022316

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