Chin. Phys. Lett.  2006, Vol. 23 Issue (12): 3142-3144    DOI:
Original Articles |
Teleportation of an Arbitrary Multipartite GHZ-Class State by One EPR Pair
WANG Ya-Hong1,2;YU Chang-Shui¹;SONG He-Shan1
¹Department of Physics, Dalian University of Technology, Dalian 116024 ²School of Information Science and Engineering, Institute of Light Industry, Dalian 116034
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WANG Ya-Hong, YU Chang-Shui&sup, SONG He-Shan 2006 Chin. Phys. Lett. 23 3142-3144
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Abstract We present a scheme for perfectly teleporting an arbitrary and unknown N-particle GHZ-class state from a sender to a receiver. We just need one quantum channel composed of two or three particles in the maximally entangled state. The sender performs one Bell-state measurement on two of her particles and N-1 Hadamard operations and N-1 von Neumann measurements on the rest N-1 particles. The receiver adopts one corresponding unitary transformation on his particles shared with the sender. After that, the receiver can obtain the original N-particle GHZ-class state by introducing N-1 ancillary particles and carrying out N-1 controlled-NOT operations. We also generalize the scheme to the case of controlled teleportation.
Keywords: 03. 67. -a      03. 67. Hk     
Published: 01 December 2006
PACS:  03. 67. -a  
  03. 67. Hk  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I12/03142
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WANG Ya-Hong
YU Chang-Shui&sup
SONG He-Shan
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