Scheme for implementing perfect remote state preparation with W-class state in cavity QED

In this paper we present a remote state preparation scheme with a three-qubit W-class state in cavity QED. It has
been shown that a special single-qubit state and a special two-qubit entangled state can be remotely prepared perfectly.
Furthermore, the classical information cost in this scheme is less than that in the corresponding teleportation scheme
and only a single-qubit projective measurement is made by the sender. We also generalize this idea to the multiqubit
W-class state.