四粒子纠缠W态的概率隐形传输  

Probabilistic Teleportation of a Four-particle Entangled W State

作　　者：张国华[1] 王美玉[1] 闫凤利[1] 

机构地区：[1]河北师范大学物理科学与信息工程学院,河北石家庄050016

出　　处：《河北师范大学学报（自然科学版）》2006年第3期293-296,共4页Journal of Hebei Normal University：Natural Science

基　　金：河北省自然科学基金资助项目(A2004000141;A2005000140)

摘　　要：提出利用2个二粒子部分纠缠态作为量子信道,实现四粒子纠缠W态的概率隐形传输方案.发送者做3次幺正变换和2次Bell基测量,然后接收者通过引入辅助粒子并做适当的幺正变换,就能以一定的概率完成四粒子纠缠W态的隐形传输.A scheme for probabilistic teleportation of a four-particle entangled W state is given. Two partially entangled two-particle states are used as the quantum channel. A four-particle entangled W state can be perfectly teleported probabilistically from the sender to the receiver if the sender performs three unitary transformations and two Bell-state measurements while the receiver introduces auxiliary particles and performing appropriate unitary transformations.

关 键 词：量子隐形传态 四粒子纠缠W态 幺正变换 

分 类 号：O41[理学—理论物理]