基于三粒子纠缠态的未知单粒子态的量子秘密共享

J4 ›› 2012, Vol. 29 ›› Issue (4): 421-426.

基于三粒子纠缠态的未知单粒子态的量子秘密共享

张群永

淮阴工学院数理学院，江苏淮安 223003

收稿日期:2012-02-24 修回日期:2012-03-21 出版日期:2012-07-28 发布日期:2012-07-01
通讯作者: 张群永（1984-）江苏涟水人，硕士，主要从事量子信息与量子计算方面的研究。 E-mail:zhangqunyong@126.com

Quantum secret sharing of single-qubit state via tripartite entangled states

ZHANG Qunyong

Faculty of Mathematics and Physics, Huaiyin Institute of Technology, Huai’an 223003, China

Received:2012-02-24 Revised:2012-03-21 Published:2012-07-28 Online:2012-07-01

摘要/Abstract

摘要：

提出了两个未知单粒子态的量子秘密共享方案，分别使用一个对称的三粒子纠缠态和一个不对称的三粒子纠缠态作为量子信道来实现态的共享。在发送者和协助者分别对各自所拥有的粒子实施Bell基测量、单粒子态测量之后，接收者对所拥有的粒子作相应的幺正操作才能实现初始量子态的重构。方案可以推广至任意两粒子和多粒子纠缠态的量子秘密共享。在安全性方面，考虑了来自外部和共享者内部的盗窃情况，经讨论可认为所提出的方案是安全可靠的。

关键词: 量子光学, 量子秘密共享, 幺正操作, 量子态共享, 量子信息分离

Abstract:

Two schemes for quantum secret sharing of single-qubit state were proposed. A symmetric three-qubit entangled state and an asymmetric three-qubit entangled state was used as quantum channel, respectively. The sender performs Bell-basis measurements on her particles, and the cooperator operates single-particle measurements on his particles, then the state receiver can reconstruct the original state by applying the appropriate unitary operation. The schemes can also be generalized to the case of arbitrary two-qubit and multi-particle entangled state. The security against certain eavesdropping attacks is also considered. These protocols are considered to be secure.

Key words: quantum optics, quantum secret sharing, unitary operation, quantum state sharing, quantum information splitting

中图分类号:

O431.2

张群永. 基于三粒子纠缠态的未知单粒子态的量子秘密共享[J]. J4, 2012, 29(4): 421-426.

ZHANG Qunyong. Quantum secret sharing of single-qubit state via tripartite entangled states[J]. J4, 2012, 29(4): 421-426.

参考文献

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