张量表示的量子隐形传态研究

摘要

通过定义通道参数矩阵X、测量矩阵Tα和传输变换矩阵σα，介绍一种量子隐形传态的张量表示和分析方法，并用此方法来重新表示量子隐形传输、量子网络控制隐形传输、量子概率隐形传输和量子双向隐形传输。量子隐形传态的这种张量表示方法揭示了量子通道和测量方法之间的内在联系，能给出实现隐形传态时选取量子通道的一般判据。该方法使隐形传态的表示简洁明了，处理多粒子态的隐形传态更有优势。%The tensor representation is introduced to study quantum teleportation.Quantum channel parameter matrix X,measurement matrix Tαand transformation matrixσαare definited. With the tensor representation,the quantum telepoatation,the network-controlled telepoatation are reconsidered.This method of tensor representation recovers underlying relationship between the quantum channel and measurement and gives an effective criterion to choose the quantum channel for realizing the quantum telepoatation.The tensor representation can avoid tedious e-quation and complex calculations and make the teleportation processing succincter.