Deterministic controlled remote state preparation using partially entangled quantum channel

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• 作者：Na Chen ; Dong Xiao Quan ; Hong Yang ; Chang Xing Pei
• 关键词：Controlled remote state preparation ; Partially entangled quantum channel ; Two ; qubit state
• 刊名：Quantum Information Processing
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：15
• 期：4
• 页码：1719-1729
• 全文大小：467 KB
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• 作者单位：Na Chen (1)
  Dong Xiao Quan (1)
  Hong Yang (1)
  Chang Xing Pei (1)
  
  1. The State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, 710071, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Physics
  Mathematics
  Engineering, general
  Computer Science, general
  Characterization and Evaluation Materials
  
• 出版者：Springer Netherlands
• ISSN：1573-1332

文摘

In this paper, we propose a novel scheme for deterministic controlled remote state preparation (CRSP) of arbitrary two-qubit states. Suitably chosen partially entangled state is used as the quantum channel. With proper projective measurements carried out by the sender and controller, the receiver can reconstruct the target state by means of appropriate unitary operation. Unit success probability can be achieved for arbitrary two-qubit states. Different from some previous CRSP schemes utilizing partially entangled channels, auxiliary qubit is not required in our scheme. We also show that the success probability is independent of the parameters of the partially entangled quantum channel.