Probabilistic teleportation of an arbitrary GHZ-class state with a pure entangled two-particle quantum channel and its application in quantum state sharing

This paper presents a scheme for probabilistic teleportation of anarbitrary GHZ-class state with a pure entangled two-particle quantumchannel. The sender Alice first teleports the coefficients of theunknown state to the receiver Bob, and then Bob reconstructs thestate with an auxiliary particle and some unitary operations if theteleportation succeeds. This scheme has the advantage oftransmitting much less particles for teleporting an arbitraryGHZ-class state thanothers. Moreover, it discusses the application of thisscheme in quantum state sharing.