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

doi:10.1088/1674-1056/25/11/114206

中国物理B ›› 2016, Vol. 25 ›› Issue (11): 114206-114206.doi: 10.1088/1674-1056/25/11/114206

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

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

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

1 Physics Department, College of Science, University of Sulaimani, Kurdistan Region, Iraq;
2 Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik, Iceland

收稿日期:2016-04-02 修回日期:2016-06-25 出版日期:2016-11-05 发布日期:2016-11-05
通讯作者: Nzar Rauf Abdullah E-mail:nzar.r.abdullah@gmail.com

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

Nzar Rauf Abdullah^1,2, Aziz H Fatah¹, Jabar M A Fatah¹

1 Physics Department, College of Science, University of Sulaimani, Kurdistan Region, Iraq;
2 Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik, Iceland

Received:2016-04-02 Revised:2016-06-25 Online:2016-11-05 Published:2016-11-05
Contact: Nzar Rauf Abdullah E-mail:nzar.r.abdullah@gmail.com

摘要/Abstract

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.

关键词: cavity quantum electrodynamics, electronic transport in mesoscopic systems, quantum interference devices, magnetotransport phenomena

Abstract: 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.

Key words: cavity quantum electrodynamics, electronic transport in mesoscopic systems, quantum interference devices, magnetotransport phenomena

中图分类号: (Cavity quantum electrodynamics; micromasers)

42.50.Pq

73.23.-b (Electronic transport in mesoscopic systems) 78.20.Jq (Electro-optical effects) 75.47.-m (Magnetotransport phenomena; materials for magnetotransport)

Nzar Rauf Abdullah, Aziz H Fatah, Jabar M A Fatah. Effects of magnetic field on photon-induced quantum transport in a single dot-cavity system[J]. 中国物理B, 2016, 25(11): 114206-114206.

Nzar Rauf Abdullah, Aziz H Fatah, Jabar M A Fatah. Effects of magnetic field on photon-induced quantum transport in a single dot-cavity system[J]. Chin. Phys. B, 2016, 25(11): 114206-114206.

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

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

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