A Teleportation Protocol For Transfer of Arbitrary GHZ-states Using Intermediate Nodes
Originally the teleportation protocols were executed through quantum channels shared between the sender and the receiver. In view of the almost unavoidable environmental noise and the fact that entangled states are usually fragile, long distance teleportation becomes problematic. For that purpose intermediate nodes connected in chains through entanglements are introduced and the teleportation is performed in parts across every pair of adjacent nodes. In this paper we show that we can perfectly teleport an arbitrary GHZ-state through a single protocol involving multiple intermediate nodes. The advantages of this protocol are discussed.
KeywordsQuantum teleportation GHZ-states Two-qubit Bell-state von Neumann measurement Delay Efficiency
This work is supported by the University Grants Commission of India. The valuable suggestions of the referee are gratefully acknowledged.
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