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

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

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.

Keywords: cavity quantum electrodynamics electronic transport in mesoscopic systems quantum interference devices magnetotransport phenomena

Received: 02 April 2016
Revised: 25 June 2016
Accepted manuscript online:

PACS:	42.50.Pq	(Cavity quantum electrodynamics; micromasers)
	73.23.-b	(Electronic transport in mesoscopic systems)
	78.20.Jq	(Electro-optical effects)
	75.47.-m	(Magnetotransport phenomena; materials for magnetotransport)

Corresponding Authors: Nzar Rauf Abdullah
E-mail: nzar.r.abdullah@gmail.com

Cite this article:

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 2016 Chin. Phys. B 25 114206

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

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