中国物理B ›› 2008, Vol. 17 ›› Issue (11): 3991-3995.doi: 10.1088/1674-1056/17/11/009

• GENERAL • 上一篇    下一篇

Construction and application of multi-partner communication network

修晓明, 董 莉, 高亚军, 迟 锋   

  1. Department of Physics, Bohai University, Jinzhou 121000, China
  • 收稿日期:2007-11-17 修回日期:2007-12-09 出版日期:2008-11-20 发布日期:2008-11-20

Construction and application of multi-partner communication network

Xiu Xiao-Ming (修晓明), Dong Li (董 莉), Gao Ya-Jun (高亚军), Chi Feng (迟 锋)   

  1. Department of Physics, Bohai University, Jinzhou 121000, China
  • Received:2007-11-17 Revised:2007-12-09 Online:2008-11-20 Published:2008-11-20

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摘要： In this paper, we present a multi-partner communication network protocol. The supervisor prepares numerous Einstein--Podolsky--Rosen (EPR) pairs and auxiliary qubits. He then performs a controlled-NOT(CNOT) gate operation on one qubit of each EPR pair and an auxiliary, which induces the entanglement between the EPR pair and the auxiliary. The supervisor keeps one qubit sequence in his laboratory and sends the others to the outside world. After security approval, the network can be constructed successfully, which can be applied to quantum secret sharing and quantum secure direct communication.

Abstract: In this paper, we present a multi-partner communication network protocol. The supervisor prepares numerous Einstein--Podolsky--Rosen (EPR) pairs and auxiliary qubits. He then performs a controlled-NOT(CNOT) gate operation on one qubit of each EPR pair and an auxiliary, which induces the entanglement between the EPR pair and the auxiliary. The supervisor keeps one qubit sequence in his laboratory and sends the others to the outside world. After security approval, the network can be constructed successfully, which can be applied to quantum secret sharing and quantum secure direct communication.

Key words: quantum information, quantum secret sharing, quantum secure direct communication

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
03.65.Ud (Entanglement and quantum nonlocality) 03.67.Lx (Quantum computation architectures and implementations)