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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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| Cite this article: |
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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.
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03. 67. -a
03. 67. Hk
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Published: 01 December 2006
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