| Quantum Remote Control of Unitary Operations on a Qubit of Pure Entangled States |
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| 引用本文： | 姚春梅. Quantum Remote Control of Unitary Operations on a Qubit of Pure Entangled States[J]. 中国物理快报, 2006, 23(3): 545-547 |
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| 作者姓名： | 姚春梅 |
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| 作者单位： | Department of Physics and Electronic Sciences, Hunan University of Arts and Science, Changde 415000 |
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| 基金项目： | Supported by the Fundamental Youthful Research Programme of China under Grant No 03B027, and the Education Bureau of Hunan Province. |
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| 摘 要： |
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| 关 键 词： | 量子遥控 一元运算 混乱态 全经典信息 量子运转 |
| 收稿时间： | 2005-11-11 |
| 修稿时间： | 2005-11-11 |
Quantum Remote Control of Unitary Operations on a Qubit of Pure Entangled States |
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| YAO Chun-Mei. Quantum Remote Control of Unitary Operations on a Qubit of Pure Entangled States[J]. Chinese Physics Letters, 2006, 23(3): 545-547 |
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| Authors: | YAO Chun-Mei |
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| Abstract: | We consider the remote implementation of an arbitrary unitary operation on one qubit of a pure two-qubit entangled state with 100% efficiency via entanglement swapping in detail, then directly generalize this protocol from two-qubit to N-qubit entangled states. The overall classical information and distributed entanglement cost required for this quantum remote control protocol is less than the bi-directional quantum state teleportation method. |
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