| Unidirectional Quantum Remote Control： Teleportation of Control－State |
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| 引用本文： | ZHENGYi-Zhuang GUYong-Jian WUGui-Chu GUOGuang-Can. Unidirectional Quantum Remote Control： Teleportation of Control－State[J]. 理论物理通讯, 2003, 40(2): 161-164 |
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| 作者姓名： | ZHENGYi-Zhuang GUYong-Jian WUGui-Chu GUOGuang-Can |
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| 作者单位： | [1]DepartmentofPhysics,WenzhouNormMCollege,Wenzhou325027,China [2]KeyLaboratoryofQuantumInformation,UniversityofScienceandTechnologyofChina,Hefei230026,China |
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| 摘 要： | We investigate the problem of teleportation of unitary operations by unidirectional control-state telepor-ration and propose a scheme called unidirectional quantum remote control. The scheme is based on the isomorphism between operation and state. It allows us to store a unitary operation in a control state, thereby teleportatSon of the unitary operation can be implemented by unidirectional teleportation of the control-state. We find that the probability of success for implementing an arbitrary unitary operation on arbitrary A~-qubit state by unidirectional control-state teleportation is 4^-M, and 2M ebits and 4M cbits are consumed in each teleportation.
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| 关 键 词： | 量子信息 单向性 量子遥控 量子输运 控制状态 远距离传输 |
| 收稿时间： | 2002-10-15 |
Unidirectional Quantum Remote Control: Teleportation ofControl-State |
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| ZHENG Yi-Zhuang,GU Yong-Jian,WU Gui-Chu,GUOGuang-Can. Unidirectional Quantum Remote Control: Teleportation ofControl-State[J]. Communications in Theoretical Physics, 2003, 40(2): 161-164 |
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| Authors: | ZHENG Yi-Zhuang GU Yong-Jian WU Gui-Chu GUOGuang-Can |
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| Affiliation: | 1. Department of Physics, Wenzhou Normal College, Wenzhou 325027, China;2. Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | We investigate the problem of teleportation of unitary operationsby unidirectional control-state teleportation and propose ascheme called unidirectional quantum remote control. The scheme isbased on the isomorphism between operation and state. It allows usto store a unitary operation in a control state, thereby teleportation of the unitary operation can be implemented by unidirectional teleportation of the control-state. We find that the probability of success for implementing an arbitrary unitaryoperation on arbitrary M-qubit state by unidirectional control-state teleportation is 4-M, and 2M ebits and 4M cbitsare consumed in each teleportation. |
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| Keywords: | teleportation quantum remote control unidirectional |
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