Teleportation and Dense Coding with Genuine Multipartite Entanglement

Abstract

We present an explicit protocol ${\mathcal{E}}_0$ for faithfully teleporting an arbitrary two-qubit state via a genunie four-qubit entangled state. By construction, our four-partite state is not reducible to a pair of Bell states. Its properties are compared and contrasted with those of the four-party GHZ and W states. We also give a dense coding scheme ${\mathcal{D}}_0$ involving our state as a shared resource of entanglement. Both ${\mathcal{D}}_0$ and ${\mathcal{E}}_0$ indicate that our four-qubit state is a likely candidate for the genunine four-partite analogue to a Bell state.

9 pages, 0 figure

References in corpus (2)

• Quantum teleportation of an arbitrary two qubit state and its relation to multipartite entanglement
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