Dynamic electron transport theory for multiprobe mesoscopic structures
Using the linear response theory and random phase approximation, we develop a general dynamic electron transport theory for multiprobe mesoscopic structures in an arbitrarily time-dependent external field. In this case, the responses of the dynamic current, charge and internal potential to the exter...
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| Veröffentlicht in: | Chinese physics B 2011-07, Vol.20 (7), p.373-379, Article 077201 |
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| container_title | Chinese physics B |
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| creator | 全军 田英 张军 邵乐喜 |
| description | Using the linear response theory and random phase approximation, we develop a general dynamic electron transport theory for multiprobe mesoscopic structures in an arbitrarily time-dependent external field. In this case, the responses of the dynamic current, charge and internal potential to the external fields can be determined self-consistently. Without loss of generality, charge （current） conservation and gauge invariance under a potential shift are satisfied. As an example, we employ a quantum wire with a single barrier to discuss the response of the internal potential. |
| doi_str_mv | 10.1088/1674-1056/20/7/077201 |
| format | Article |
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| identifier | ISSN: 1674-1056 |
| ispartof | Chinese physics B, 2011-07, Vol.20 (7), p.373-379, Article 077201 |
| issn | 1674-1056 2058-3834 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1671520900 |
| source | Institute of Physics Journals |
| subjects | Approximation Charge Conservation Dynamics Electron transport Gauge invariance Mathematical analysis Quantum wires 介观结构 动态电流 外部磁场 多功能 电子 线性响应理论 规范不变性 输运理论 |
| title | Dynamic electron transport theory for multiprobe mesoscopic structures |
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