作　　者： ; ; ; ;

机构地区： 佛山科学技术学院理学院物理系

出　　处： 《量子电子学报》 2004年第6期740-744,共5页

摘　　要： 提出一种利用部分纠缠粒子对作为量子通道实现量子隐形传态的方案。在此方案中,若发送者施一旋转操作于被传态的粒子并对该粒子和她拥有的部分纠缠粒子对之一实施计算基测量,则该粒子所处的未知量子态被传送给接收者,其态的保真度为1,成功几率与部分纠缠粒子对的两个Schmidt系数有关。此方案可推广到隐形传送N粒子的未知量子态。 A scheme for teleporting an unknown quantum state via a partially entangled particle pair is proposed. We show that teleportation can be successful realized with unit fidelity but less than unit probability if the sender performs a rotational operation on the teleported qubit and then performs computation basis measurements on the teleported particle and the half of the entangled particle pair respectively. The probability of successful teleportation is determined by both Schmidt coefficients of the entangled pair. This method can be generalized to the teleportation of an arbitrary and unknown multi-qubit state.

关 键 词： 量子光学 纠缠态 计算基测量 隐形传态 旋转操作

领　　域： [电子电信] [电子电信]