| Effect of external noise on the dynamical localization of two coupling electrons in quantum dot array |
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| 作者姓名： | 何安民 段素青 赵宪庚 |
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| 作者单位： | Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;Institute of Applied Physics and Computational Mathematics, Beijing 100088, China |
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| 基金项目： | Project supported in part by the National Natural Science Foundations of China (Grant No 10274007), and a grant of the China Academy of Engineering and Physics. |
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| 摘 要： |
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| 关 键 词： | 量子点 电子结合 半导体 纳米结构 外部噪音 随机轨道 |
| 收稿时间： | 2005-05-26 |
| 修稿时间： | 2005-05-262005-07-20 |
Effect of external noise on the dynamical localization of two coupling electrons in quantum dot array |
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| He An-Min,Duan Su-Qing and Zhao Xian-Geng.Effect of external noise on the dynamical localization of two coupling electrons in quantum dot array[J].Chinese Physics B,2005,14(11):2320-2324. |
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| Authors: | He An-Min Duan Su-Qing and Zhao Xian-Geng |
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| Institution: | Institute of Applied Physics and Computational Mathematics, Beijing 100088, China |
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| Abstract: | The effect of external noise, which is characterized by
an Ornstein--Uhlenbeck process, on the dynamical localization of
two coupling electrons in a quantum dot array under the action of
an ac electric field is studied. A numerical solution of the stochastic
equations is obtained by averaging over stochastic
trajectories. The results show that the external noise may destroy the
dynamical localization, but the anti-noise capacity of the system
is stronger when the two electrons are localized at the ends of
the quantum dot array. |
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| Keywords: | quantum dot dynamical localization external noise |
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