| Many-Agent Controlled Teleportation of Multi-qubit Quantum Information via Quantum Entanglement Swapping |
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| 作者姓名： | ZHANG Zhan-Jun LIU Yi-Min MAN Zhong-Xiao |
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| 作者单位： | [1]School of Physics ＆ Material Science, Anhui University, Hefei 230039, China [2]Department of Physics, Shaoguan University, Shaoguan 512005, China [3]Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China |
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| 基金项目： | The project supported by National Natural Science Foundation of China under Grant No. 10304022 |
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| 摘 要： | We present a method to teleport multi-qubit quantum information in an easy way from a sender to a receiver via the control of many agents in a network. Only when all the agents collaborate with the quantum information receiver can the unknown states in the sender＇s qubits be fully reconstructed in the receiver＇s qubits. In our method, agents＇s control parameters are obtained via quantum entanglement swapping. As the realization of the many-agent controlled teleportation is concerned, compared to the recent method G.P. Yang, et al., Phys. Rev. A 70 （2004） 022329], our present method considerably reduces the preparation difficulty of initial states and the identification difficulty of entangled states, moreover, it does not need local Hadamard operations and it is more feasible in technology.
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| 关 键 词： | 代理控制 量子纠缠交换 量子信息 量子运输 |
| 收稿时间： | 2005-03-09 |
| 修稿时间： | 2005-03-092005-04-26 |
Many-Agent Controlled Teleportation of Multi-qubit Quantum Information via Quantum Entanglement Swapping |
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| ZHANG Zhan-Jun LIU Yi-Min MAN Zhong-Xiao.Many-Agent Controlled Teleportation of Multi-qubit Quantum Information via Quantum Entanglement Swapping[J].Communications in Theoretical Physics,2005,44(5):847-850. |
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| Authors: | ZHANG;Zhan-Jun;LIU;Yi-Min;MAN;Zhong-Xiao |
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| Abstract: | |
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| Keywords: | quantum teleportation quantum information quantum entanglement swapping |
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