Probabilistic Teleportation of a Four-Particle Entangled W State

Abstract

In this paper, two schemes for teleporting an unknownfour-particle entangled W state is proposed. In the first scheme, twopartial entangled four-particle states are used as quantum channels, whilein the second scheme, four non-maximally entangled particle pairs areconsidered as quantum channels. It is shown that the teleportation can besuccessfully realized with certain probability, for both schemes, if areceiver adopts some appropriate unitary transformations. It is also shownthat the successful probabilities of these two schemes are different.