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Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Teleportation of a three-particle entangled GHZ state via a two-particle entangled quantum channel

Hongmei Huang

Published Mar 14, 2013• 0 citations
Publisher

Abstract

A scheme of teleportation of a three-particle entangled GHZ state through a two-paticle entangled quantum channels is proposed. the two-particle nonmaximally entangled state is taken as quantum channels, We find that by implementing H transformation and von Neumann measurement,introducing an ancilly qubit, constructing an unitary transformation properly, teleportation of three-paticle entangled GHZ state can be implemented with certain probability. This scheme saves the quantum entanglement channel resources comparing with other shemes.

DOI
10.1117/12.2009218

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Abstract A scheme for teleporting an unknown three-particle GHZ state from a sender to either one of two receivers is proposed.In this scheme,the quantum channel is composed of two non-maximally three-particle entangled W states. An unknown three-particle GHZ state can be perfectly teleported probabilistically if the sender performs two generalized Bell-state measurements and the Hadamard operation while either one of two receivers introduces an ancillary particle which is one of the final three particle constituting the teleported state,then performs the controlled-not operation with the ancillary particle as the target bit and introduces an appropriate unitary transformation with the help of the other receiver's simple measurements.All kinds of unitary transformations are given in detail.The present scheme may be directly generalized to teleport an unknown multiparticle GHZ state via two three-particle entangled W states used as the quantum channel.