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Chinese Physics, 2005, Vol. 14(5): 898-901    DOI: 10.1088/1009-1963/14/5/007
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Quantum logic networks for controlled teleportation of a single particle via W state

Yuan Hong-Chun (袁洪春)ab, Qi Kai-Guo (齐开国)a
a Department of Physics, University of Science and Technology of China, Hefei 230026, China; b Department of Physics, Huaibei Coal Industry Teachers’ College, Huaibei 235000, China
Abstract  We discuss the scheme for probabilistic and controlled teleportation of an unknown state of one particle using the general three-particle W state as the quantum channel. The feature of this scheme is that teleportation between two sides depends on the agreement of the third side (Charlie), who may participate the process of quantum teleportation as a supervisor. In addition, we also construct efficient quantum logic networks for implementing the new scheme by means of the primitive operations.
Keywords:  controlled teleportation      W state      quantum circuit  
Received:  21 September 2004      Revised:  02 December 2004      Accepted manuscript online: 
PACS:  0365  
  0367  

Cite this article: 

Yuan Hong-Chun (袁洪春), Qi Kai-Guo (齐开国) Quantum logic networks for controlled teleportation of a single particle via W state 2005 Chinese Physics 14 898

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