中国物理B ›› 2008, Vol. 17 ›› Issue (2): 624-627.doi: 10.1088/1674-1056/17/2/043

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Quantum state sharing of an arbitrary qudit state by using nonmaximally generalized GHZ state

陶应娟1, 胡明亮1, 秦 猛1, 田东平2   

  1. (1)School of Science, Xi'an Jiaotong University, Xi'an 710049, China; (2)Xi'an Institute of Post and Telecommunication, Xi'an 710061, China
  • 收稿日期:2007-05-25 修回日期:2007-06-28 出版日期:2008-02-20 发布日期:2008-02-20

Quantum state sharing of an arbitrary qudit state by using nonmaximally generalized GHZ state

Tao Ying-Juan(陶应娟)a)†), Tian Dong-Ping(田东平)b), Hu Ming-Liang(胡明亮)a), and Qin Meng(秦猛)a)   

  1. a School of Science, Xi'an Jiaotong University, Xi'an 710049, China; b Xi'an Institute of Post and Telecommunication, Xi'an 710061, China
  • Received:2007-05-25 Revised:2007-06-28 Online:2008-02-20 Published:2008-02-20

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摘要： We present a scheme for quantum state sharing of an arbitrary qudit state by using nonmaximally entangled generalized Greenberger--Horne--Zeilinger (GHZ) states as the quantum channel and generalized Bell-basis states as the joint measurement basis. We show that the probability of successful sharing an unknown qudit state depends on the joint measurements chosen by Alice. We also give an expression for the maximally probability of this scheme.

Abstract: We present a scheme for quantum state sharing of an arbitrary qudit state by using nonmaximally entangled generalized Greenberger--Horne--Zeilinger (GHZ) states as the quantum channel and generalized Bell-basis states as the joint measurement basis. We show that the probability of successful sharing an unknown qudit state depends on the joint measurements chosen by Alice. We also give an expression for the maximally probability of this scheme.

Key words: quantum state sharing, qudit state, partially entangled channels

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.67.Lx (Quantum computation architectures and implementations) 03.67.Mn (Entanglement measures, witnesses, and other characterizations) 03.65.Ta (Foundations of quantum mechanics; measurement theory)