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ZTE Communications ›› 2013, Vol. 11 ›› Issue (3): 36-40.DOI: DOI:10.3969/j.issn.1673-5188.2013.03.006

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Two-Way Cooperative Quantum Communication with Partial Entanglement Analysis

Yunkai Deng, Zhujun Gao, and Ying Guo   

  1. Central South University, Changsha 410083, China
  • Received:2013-08-06 Online:2013-09-25 Published:2013-09-25
  • About author:Yunkai Deng received his BS degree from Central South University, China, in 2004. He began working toward his MSc degree at Central South University in 2012. His research interests include quantum information processing, mobile communications, and high-speed communication networks.

    Zhujun Gao received his BS degree from Qufu Normal University, China, in 2004. He began working toward his MSc degree at Central South University in 2013. His research interests include technology education, modern mobile communications, and high-speed communication networks.

    Ying Guo (yingguo@csu.edu.cn)received his MS degree from Kunming University of Science and Technology, China, in 2003. He received his PhD degree from Shanghai Jiaotong University in 2006. His research interests include quantum information processing and communications, wireless communication. He is now a professor at Central South University, China.

Two-Way Cooperative Quantum Communication with Partial Entanglement Analysis

Yunkai Deng, Zhujun Gao, and Ying Guo   

  1. Central South University, Changsha 410083, China
  • 作者简介:Yunkai Deng received his BS degree from Central South University, China, in 2004. He began working toward his MSc degree at Central South University in 2012. His research interests include quantum information processing, mobile communications, and high-speed communication networks.

    Zhujun Gao received his BS degree from Qufu Normal University, China, in 2004. He began working toward his MSc degree at Central South University in 2013. His research interests include technology education, modern mobile communications, and high-speed communication networks.

    Ying Guo (yingguo@csu.edu.cn)received his MS degree from Kunming University of Science and Technology, China, in 2003. He received his PhD degree from Shanghai Jiaotong University in 2006. His research interests include quantum information processing and communications, wireless communication. He is now a professor at Central South University, China.

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Abstract: In this paper, we describe an improved cooperative two-way quantum communication scheme that works in a forward-and-backward fashion. In this scheme, partial entanglement analysis based on five-qubit entangled Brown state allows for the simultaneous exchange of arbitrary unknown states between Alice and Bob (with the help of trusted Charlie). Security is guaranteed because opposing unknown states are transmitted by performing the suitable recovery operations in a deterministic way or, in the case of irregularities, no results are generated. The current two-way quantum communication scheme can also be extended to transmit arbitrary unknown states. This is done in a probabilistic way by using two-way quantum teleportation based on the generalized Brown-like state.

Key words: quantum teleportation, two-way communication, brown state, bell states, entanglement

摘要： In this paper, we describe an improved cooperative two-way quantum communication scheme that works in a forward-and-backward fashion. In this scheme, partial entanglement analysis based on five-qubit entangled Brown state allows for the simultaneous exchange of arbitrary unknown states between Alice and Bob (with the help of trusted Charlie). Security is guaranteed because opposing unknown states are transmitted by performing the suitable recovery operations in a deterministic way or, in the case of irregularities, no results are generated. The current two-way quantum communication scheme can also be extended to transmit arbitrary unknown states. This is done in a probabilistic way by using two-way quantum teleportation based on the generalized Brown-like state.

关键词: quantum teleportation, two-way communication, brown state, bell states, entanglement