| Original Articles |
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Probabilistic Controlled Teleportation of a Triplet W State |
| JIANG Wei-Xing;FANG Jian-Xing;ZHU Shi-Qun;SHA Jin-Qiao |
| Department of Physics, Suzhou University, Suzhou 215006 |
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| Cite this article: |
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JIANG Wei-Xing, FANG Jian-Xing, ZHU Shi-Qun et al 2007 Chin. Phys. Lett. 24 1144-1146 |
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Abstract A scheme for probabilistic controlled teleportation of a triplet W
state from the sender Alice to the distant receiver Bob is proposed.
In this scheme, an m-qubit GHZ state serves as the control parameter.
The m control qubits are shared by m(s1,s2... sm) spatially-separated supervisors. With the aid of local operations and individual measurements, including Bell-state measurement, Von Neumann measurement, and mutual classical communication, etc., Bob can faithfully reconstruct the original state by performing relevant unitary transformations. However, even if one participant does not cooperate during the process, the receiver Bob cannot fully recover the original state. This protocol can be extended to probabilistic controlled teleportation of an arbitrary N-qubit state and some other N-qubit entangled states.
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| Keywords:
03.67.-a
03.67.Hk
03.65.Ud
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Received: 25 January 2007
Published: 23 April 2007
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