| Swap量子门的消相干特性 |
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| 引用本文： | 高峰,张登玉,刘雅丽,周熠,刘超平.Swap量子门的消相干特性[J].衡阳师范学院学报,2007,28(3):47-50. |
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| 作者姓名： | 高峰 张登玉 刘雅丽 周熠 刘超平 |
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| 作者单位： | 衡阳师范学院物理与电子信息科学系,湖南,衡阳,421008 |
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| 摘 要： | 利用单电子量子点的自旋态,研究了Swap量子门的量子相干特性。得到了系统的超算子,并利用超算子得出了体系的密度矩阵元,在玻恩和马尔科夫近似下,分析了体系由于磁环境所引起的消相干特性。
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| 关 键 词： | 消相干 Swap量子门 量子点 矩阵元 |
| 文章编号： | 1673-0313（2007）03-0047-04 |
| 收稿时间： | 2007-01-06 |
| 修稿时间： | 2007-01-06 |
Decoherence of Swap Qubit Gate |
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| GAO Feng,ZHANG Deng-yu,LIU Ya-li,ZHOU Yi,LIU Chao-ping.Decoherence of Swap Qubit Gate[J].journal of Hengyang Normal University,2007,28(3):47-50. |
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| Authors: | GAO Feng ZHANG Deng-yu LIU Ya-li ZHOU Yi LIU Chao-ping |
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| Institution: | Department of Physics and Electronic Information Science, Hengyang Normal University, Hunan Hengyang 421008, China |
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| Abstract: | In this paper,using the spin states of coupled singleelectron quantum dots,quantum coherence of the Swap qubit gate are studied,we obtained super operator of the system.Further,we gained the matrix element based on super operator and discussed the decoherence caused by a prototypical magnetic environment in the Born and Markov approximation. |
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| Keywords: | decoherence Swap qubit gate Quantum dots matrix element |
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