Teleportation and Superdense coding with Genuine quadripartite entangled states

Details Teleportation and Superdense coding with Genuine quadripartite entangled states Teleportation and Superdense coding with Genuine quadripartite entangled states

2007-05-14

arxiv.org/abs/0705.1917v1

Physics

Quantum Physics

40 pages, no figures

Scientific paper

We investigate the usefulness of different classes of genuine quadripartite entangled states as quantum resources for teleportation and superdense coding. We examine the possibility of teleporting unknown one, two and three qubit states. We show that one can use the teleportation protocol to send any general one and two qubit states. A restricted class of three qubit states can also be faithfully teleported. We also explore superdense coding protocol in single-receiver and multi-receiver scenarios. We show that there exist genuine quadripartite entangled states that can be used to transmit four cbits by sending two qubits. We also discuss some interesting features of multi-receiver scenario under LOCC paradigm.

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