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arXiv 1607.07201cond-mat.mes-hall
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磁场对单点腔系统中光生量子输运的影响

Magnetic-field effects on photon-induced quantum transport in a single dot-cavity system

Nzar Rauf Abdullah, Aziz H. Fatah, Jabar M. A. Fatah

摘要:

在这项研究中,我们展示了如何静态磁场可以控制光子诱导的电子输运通过量子点系统耦合到光子腔。量子点系统连接到两个电子库并暴露于外部垂直静态磁场。因此,电子通过系统的传播受到静态磁场和动态光子场的影响。观察到光子腔形成光子复制态控制系统中的电子输运。如果光子场的能量大于回旋能量,则光子场在电子输运中占主导地位。因此,由于光子复制态的激活,电子输运增强。相反,当光子能量小于回旋能量时,系统中的电子输运被抑制。

英文摘要:

In this study, we show how a static magnetic field can control photon-induced electron transport through a quantum dot system coupled to a photon cavity. The quantum dot system is connected to two electron reservoirs and exposed to an external perpendicular static magnetic field. The propagation of electrons through the system is thus influenced by the static magnetic and the dynamic photon fields. It is observed that the photon cavity forms photon replica states controlling electron transport in the system. IF the photon field has more energy than the cyclotron energy, then the photon field is dominant in the electron transport. Consequently, the electron transport is enhanced due to activation of photon replica states. By contrast, the electron transport is suppressed in the system when the photon energy is smaller than the cyclotron energy.

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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