| 侧向耦合对量子线传输性质的调制 |
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| 引用本文： | 田兆云,孟海卫,戴振宏.侧向耦合对量子线传输性质的调制[J].烟台大学学报(自然科学与工程版),2007,20(1):9-12,72. |
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| 作者姓名： | 田兆云 孟海卫 戴振宏 |
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| 作者单位： | 1. 烟台大学,光电信息科学技术学院,山东,烟台,264005
2. 烟台大学,光电信息科学技术学院,山东,烟台,264005;中国高等科学技术中心,北京,100080 |
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| 摘 要： | 利用递推格林函数方法,研究了‘T’型介观结构中的侧向耦合量子链对主量子线输运性质的调制,发现了能量对称中心位置对于判断调制模型的输运特性起关键性作用.结果表明,格林函数方法的计算较为简捷,并且,可以较方便地用来研究其他各种人造介观量子器件的输运性质.
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| 关 键 词： | 格林函数 有限量子链 无限量子链 电子输运 |
| 文章编号： | 1004-8820（2007）01-0009-04 |
| 收稿时间： | 2006-02-21 |
| 修稿时间： | 2006-02-21 |
Modulation of the Quantum Transport by a Side Quantum-dot Chain |
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| TIAN Zhao-yun,MENG Hai-wei,DAI Zhen-hong.Modulation of the Quantum Transport by a Side Quantum-dot Chain[J].Journal of Yantai University(Natural Science and Engineering edirion),2007,20(1):9-12,72. |
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| Authors: | TIAN Zhao-yun MENG Hai-wei DAI Zhen-hong |
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| Institution: | 1. Institute of Science and Technology for Opto-Electronic Information, Yantai University, Yantai 264005, China; 2. CCAST (World Laboratory |
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| Abstract: | Properties of electronic transport in a 'T-model' mesoscopic device formed by a main quantum wire with a side quantum-dot chain are investigated by using a recursive Green's function technique.The importance of the energy centrosymmetric position to estimate the modulating model is known.The results show that the Green's function method can be applied conveniently to study the varied nanofabrication of quantum-dot devices. |
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| Keywords: | Green's function infinite quantum-dot chain finite quantum-dot chain electronic transportation |
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