摘要
最近， Xiu 等。[普通。Theor。Phys。49 (2008 ) 905 ] 建议了 teleporting 的二个计划任意的一个 N 粒子和未知状态 N 什么时候三个粒子将军 W 状态组织，作为量隧道被利用。他们给了成功的远距传物的最大的概率。这里，我们发现他们的操作不是最佳并且远距传物的成功的概率不是最大的。而且，我们给最佳的计划操作并且为远距传物获得最大的成功的概率。
Recently, Xiu et al. [Commun. Theor. Phys. 49 （2008） 905] proposed two schemes of teleporting an N particle arbitrary and unknown state when N groups of three particle general W states are utilized a.s quantum channels. They gave the maximal probability of successful teleportation. Here we find that their operation is not the optimal and the successful probability of the teleportation is not maximum. Moreover, we give the optimal schemes operation and obtain maximal successful probability for teleportation.
基金
Supported by the National Natural Science Foundation of China under Grant No. 10902083
the Natural Science Foundation of Shannxi Province under Grant No. 2009GM1007
