摘要
In this paper, a scheme is proposed for performing remote operation on quantum state among multiparty. We use three-particle GHZ state as quantum channels to prepare a state operator, which describes quantum correlation between states and operations. Based on the special characteristic of the state operator, observers can perform unitary operation on a system that is away from observers. Our studies show this process is deterministic. We further consider remote operation among N spatially distributed observers, and the results show the successful realization of remote operation needs collective participation of N parties, that is, there exists strong correlation among multiparty. In addition, we investigate the case in which observers share a three-particle W state as quantum channels to perform remote operation and studies find this process is probabilistic.
基金
The project supported by the Natural Science Foundation of Jiangxi Province of China under Grant No. 0612006, the Scientific Research Foundation of the Education Department of Jiangxi Province of China under Grant No. [2007]191 and the Science Foundation of East China Jiaotong University under Grant No. 06ZKJC01
