Multi-hop quantum teleportation of a N-qubit quantum state by using cluster state

Abstract

In this study, a new multi-hop quantum teleportation is investigated for transferring a N-qubit quantum state which compared with previous protocols can give a more efficient data teleportation. In proposed scheme, quantum channels among adjacent nodes are built based on ([Formula: see text])-qubit cluster state. The source node and all intermediate nodes perform measurement and announce outcome results to the destination node through the classical channel. Finally, the destination node can recover the desired quantum state by applying the appropriate unitary operators on the state it has. Also, in order to explain the details of this scheme, the multi-hop quantum teleportation of 6-qubit quantum state by using 7-qubit cluster state investigate and calculate its efficiency.