| Controlled Teleportation of Multi-Qudit Quantum Information |
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| 作者姓名： | 季花 詹孝贵 曾浩生 |
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| 作者单位： | Department of Physics, Hunan Normal University, Changsha 410081 |
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| 基金项目： | Supported by the Scientific Research Fund of Hunan Provincial Education Bureau （05B041）, the Key Project of the Ministry of Education of China （206103）, and the Natural Science Foundation of Hunan Province under Grant Nos 04JJ3017 and 05JJ30012. |
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| 摘 要： |
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| 关 键 词： | 量子信息 量子学 量子信道 量子操作 |
| 收稿时间： | 2007-6-5 |
| 修稿时间： | 2007-06-05 |
Controlled Teleportation of Multi-Qudit Quantum Information |
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| JI Hua,ZHAN Xiao-Gui,ZENG Hao-Sheng.Controlled Teleportation of Multi-Qudit Quantum Information[J].Chinese Physics Letters,2007,24(10):2724-2726. |
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| Authors: | JI Hua ZHAN Xiao-Gui ZENG Hao-Sheng |
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| Institution: | 1. Department of Physics, Hunan Normal University, Changsha 410081 |
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| Abstract: | We present a controlled teleportation scheme for teleporting an arbitrary superposition state of an M-qudit quantum system. The scheme employs only one entangled state as quantum channel, which consists of the qudits from Alice, Bob and every agent. The quantum operations used in the teleportation process are a series of qudit Bell measurements, single-qudit projective measurements, qudit H-gates, qudit-Pauli gates and qudit phase gates. It is shown that the original state can be restored by the receiver only on the condition that all the agents collaborate. If any agent does not cooperate, the original state can not be fully recovered. |
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| Keywords: | 03 67 Hk 03 65 Bz |
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