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arXiv 0812.2224cond-mat.mes-hall
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二维电子系统中初始电子态对二维电子气到量子点的电子输运的重要性

Importance of Initial Electronic State in Two-Dimensional Electron System for Electron Transport from Two-Dimensional Electron Gas to Quantum Dot

Masakazu Muraguchi, Yukihiro Takada, Shintaro Nomura, Testuo Endoh, Kenji Shiraishi

摘要:

从理论上研究了二维电子系统(2DES)到量子点(QD)的电子输运随时间的演化。我们清楚地表明,相干电子输运显着修改依赖于初始电子状态的2DES。当2DES中的电子初始态位于量子点下方时,从2DES到量子点的电子输运被强烈增强。我们指出,这些功能应获得在其他纳米结构-电极耦合系统,和电子输运系统之间具有完全不同的几何条件显着影响的初始空间分布的电子密度。

英文摘要:

We have theoretically investigated the time-evolution of electron transport from a two-dimensional electron system (2DES) to a quantum dot (QD). We clearly showed that the coherent electron transport is remarkably modified depending on the initial electronic state in the 2DES. The electron transport from the 2DES to the QD is strongly enhanced when the initial state of electron in the 2DES is localized below the QD. We indicate that these features should be obtained in other nano-structure-electrode coupled systems, and the electron transport between the systems having completely different geometrical conditions is significantly affected by the initial spatial distribution of the electron density.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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