Probabilistic Teleportation of a Four-Particle Entangled W State

In this paper,two schemes for teleporting an unknown four-particle entangled W state is proposed.Inthe first scheme,two partial entangled four-particle states are used as quantum channels,while in the second scheme,four non-maximally entangled particle pairs are considered as quantum channels.It is shown that the teleportationcan be successfully realized with certain probability,for both schemes,if a receiver adopts some appropriate unitarytransformations.It is also shown that the successful probabilities of these two schemes are different.