J4 ›› 2010, Vol. 27 ›› Issue (3): 308-313.

• 量子光学 • 上一篇    下一篇

四粒子W态的概率隐形传态

马刚龙 查新未   

  1. 西安邮电学院应用数理系,西安 710061
  • 收稿日期:2009-07-24 修回日期:2009-09-29 出版日期:2010-05-28 发布日期:2010-05-11
  • 通讯作者: 查新未(1957- ),男,教授,硕士生导师,主要研究领域为量子光学,量子信息和量子通信。 E-mail:zhaxw.xupt.edu.cn.
  • 作者简介:马刚龙(1984- ),男,硕士生,研究方向为量子信息处理。E-mail:328762444@163.com
  • 基金资助:

    陕西省自然科学基金项目(2009GM107)

Probabilistic teleportation of four particles W state

MA Gang-Long, ZHA Xin-Wei   

  1. Department of Applied Mathematics and Applied Physics, Xi’an Institute of Posts and Telecom- munications, Xi’an 710061,China
  • Received:2009-07-24 Revised:2009-09-29 Published:2010-05-28 Online:2010-05-11

摘要:

提出利用两个二粒子非最大纠缠态作为量子信道传送任意四粒子W纠缠态的方案。发送者只需做一次正交完备基测量, 然后通过经典信道将测量结果告知接收者,接受者通过引入辅助粒子F,并在适当的么正变换后做Von Neumann测量, 接着引入辅助粒子B3B4,并对手中拥有的粒子进行再一次的幺正变换,就能以一定的概率完成四粒子纠缠态的隐形传输。整个隐形传态过程中,发送者只需一次正交完备基测量,且当量子信道为最大纠缠态时,此方案可实现完全传输。

关键词: 隐形传态∣正交完备测量基∣四粒子W态

Abstract:

 A scheme for teleportation of four-particle W state via two pairs of non-maximally two –particle entangled state is given。The sender only need do oneorthogonal complete measurement basises ,then the sender inform the measurement results to the receiver by classical chanell ,and the receiver introduce auxiliary particle F,and do a Von Neumann measurement after give a proper unitary transformation. Then the receiver intruce another two auxiliary particle B3B4, and do the proper unitary transformation on his own particles. As a result,the teleportation of four particle entanglement w ill be realized w ith a certain probability .In this scheme , the sender only do one orthogonal complete measurement basises,and if the quantum channel is in maximum entanglement, this scheme can realize complete transmission.

Key words: quantum teleportation∣orthogonal complete measure basises∣four-particle W state