J4 ›› 2011, Vol. 28 ›› Issue (6): 693-698.

• 量子光学 • 上一篇    下一篇

利用GHZ态实现单粒子直积态的量子信息分裂

李满兰1,2, 叶柳2   

  1. 1 安徽大学物理与材料科学学院, 安徽 合肥 230039;
    2 安徽农业大学理学院,安徽 合肥 230036 
  • 收稿日期:2011-03-17 修回日期:2011-04-05 出版日期:2011-11-28 发布日期:2011-11-14
  • 通讯作者: 叶柳(1964- ),女,安徽合肥人,理学博士,教授,主要研究领域为量子计算与量子信息. E-mail:yeliu@ahu.edu.cn
  • 作者简介:李满兰(1971- )女,安徽怀宁人,研究生,主要研究领域为量子计算与量子信息,E-mail: limanlan@ahau.edu.cn
  • 基金资助:

    the National Science Foundation of China under Grant (No. 11074002) and the Doctoral Foundation of the Ministry of Education of China under Grant No. 20103401110003.

Quantum information splitting of a product state of a single-qubit state via GHZ states

LI Man-lan1,2, YE Liu2   

  1. 1 School of Physics and Material Science, Anhui University, Hefei 230039, China; 
    2 School of Sciences, Anhui Agricultural University, Hefei 230036, China
  • Received:2011-03-17 Revised:2011-04-05 Published:2011-11-28 Online:2011-11-14

摘要:

描述了一个利用GHZ态对任意单粒子直积态的进行信息分裂的方案。在我们的方案中,研究了任意单粒子直积态,在几个接受者之间相互合作的情况下,这个初始态才能被恢复,每个信息的接受者都有同等的权限去获得发送者的信息,他们获得原始信息的概率是一样的,获得a粒子信息的概率为,获得b粒子信息的概率为 。

关键词: 量子信息, 量子信息分裂, GHZ态, 幺正操作

Abstract:

A scheme is proposed for quantum information splitting (QIS) of a product state of an arbitrary single-qubit state with three-qubit GHZ states. In our scheme, we focus on a product state of an arbitrary single-qubit state, and the original state can be reconstructed only if the receivers cooperate with each other, every receiver has the same authority for getting the sender’s secret, and the receivers have the same probability to get the original secret , the probability to gain is obtained as , the probability to gain is obtained as .

Key words: quantum information, quantum information splitting, GHZ-state, unitary operation

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