ACTA PHOTONICA SINICA
Controlled Teleportation of an Arbitrary Twoparticle State by Using a Fourqubit Cluster State and Entanglement Swapping
刘俊昌 Liu Jun-chang, 李渊华 Li Yuan-hua, 聂义友 Nie Yi-you
Abstract
A new scheme for controlled teleportation of an arbitrary two-particle state is proposed in detail,using a four-particle cluster state as quantum channel and EPR state to achieve control.First of all,the sender applies to the controller,and then the controller performs the Bell-based measurement on the two particles of his own.And the controller notifies the sender to achieve entanglement swapping.Then,the sender makes the appropriate unitary transformation and performs a Newman measurements on the four particles of his own.And the results inform the receiver.According to the sender's measurement results,the receiver can reconstruct the arbitrary two-particle state after he makes the appropriate unitary transformation on his own particles.The success probability of the program is 100%.