,Effects of magnetic field on photon-induced quantum transport in a single dot-cavity system

来源 :Chinese Physics B | 被引量 : 0次 | 上传用户:zp283106190
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
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. 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. Quantum dot system is connected to two electron reservoirs and exposed to an external perpendicular static magnetic field. 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. Reconstructed, 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.
其他文献
We report on a tandem-pumped actively Q-switched fiber laser system emitting at 1120 nm. Parasitic oscillation is challenging in Yb-doped Q-switched 1120-nm fib
To reduce the walk-off angle of the extraordinary third-harmonic ultraviolet wave at 355 nm generated by type II KTiOPO4 and type Iβ-BaB2O4 optical crystals an
梨为蔷薇科(Rosaceae),梨亚科(Pomoideae)之梨属(Pyrus L.)植物。世界梨属植物约有60余种,分布于欧、亚、北美洲及南半球温带地区。我国是世界梨属植物的起源中心之一,蕴藏的梨属种质资
黄瓜花叶病毒病是影响番茄产量的重要病害,发病时可造成番茄严重减产。药剂、疫苗等均起不到有效的防治作用。抗病育种是最经济、有效的防治方法。由于番茄品种资源中还没有发
The quartz crystal microbalance (QCM) is an important tool that can sense nanogram changes in mass.The hybrid temperature effect on a QCM resonator in aqueous s
Using hybrid-functional first-principles calculation combined with the supercell method and band unfolding technique we investigate the band structure of non-st
脂肪酸是葡萄种子胚乳中的主要组成成分,脂肪酸对果实生长发育以及成熟果实风味物质的形成起重要作用。不同栽培方式能够有效调节葡萄植株的营养生长和生殖生长,现已被广泛用
To overcome hole-injection limitation of p+-n emitter junction in 4H-SiC light triggered thyristor,a novel highvoltage 4H-SiC light triggered thyristor with dou