In American science fiction television series Star Trek,teleporting crews from the spaceship to the surface of a planet was one of the most impressive scenes,as shown in Fig.l.Teleportation was believed to be a beautiful dream until 1993,when a seminal paper by Bennett et al.[1]showed that with the help of classical communication and quantum entanglement,a qubit can be transferred from one location to another,without moving a physical particle along with it.