| Transient and Stationary Simulations for a Quantum Hydrodynamic Model |
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| 引用本文： | 胡新 唐少强. Transient and Stationary Simulations for a Quantum Hydrodynamic Model[J]. 中国物理快报, 2007, 24(6): 1437-1440 |
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| 作者姓名： | 胡新 唐少强 |
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| 作者单位： | LTCS, Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing 100871 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 90407021, and the NCET Programme of Ministry of Education of China. |
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| 摘 要： |
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| 关 键 词： | 量子水力模式 固定计算 二极管 半导体 |
| 收稿时间： | 2006-09-20 |
| 修稿时间： | 2006-09-20 |
Transient and Stationary Simulations for a Quantum Hydrodynamic Model |
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| HU Xin,TANG Shao-Qiang. Transient and Stationary Simulations for a Quantum Hydrodynamic Model[J]. Chinese Physics Letters, 2007, 24(6): 1437-1440 |
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| Authors: | HU Xin TANG Shao-Qiang |
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| Affiliation: | LTCS, Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing 100871 |
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| Abstract: | The transient and stationary characteristics of a one-dimensional quantum hydrodynamic model are comparatively studied for semiconductor charge transport in a resonant tunnelling diode. When the bias is not small, our numerical results show a deviation of the asymptotic transient solutions from the stationary ones. A dynamic instability accounts for such deviation. The stationary quantum hydrodynamic model is therefore unsuitable in general for simulating quantum devices. |
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| Keywords: | 02.60.Cb 73.63.-b 02.30.Jr |
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