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Manifestation of the Purcell Effect in Current Transport through a Dot–Cavity–QED System

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dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor Háskólinn í Reykjavík
dc.contributor Reykjavik University
dc.contributor.author Abdullah, Nzar
dc.contributor.author Tang, Chi-Shung
dc.contributor.author Manolescu, Andrei
dc.contributor.author Gudmundsson, Vidar
dc.date.accessioned 2020-03-31T15:08:51Z
dc.date.available 2020-03-31T15:08:51Z
dc.date.issued 2019-07-17
dc.identifier.citation Abdullah, N.R.; Tang, C.-S.; Manolescu, A.; Gudmundsson, V. Manifestation of the Purcell Effect in Current Transport through a Dot–Cavity–QED System. Nanomaterials 2019, 9, 1023.
dc.identifier.issn 2079-4991
dc.identifier.uri https://hdl.handle.net/20.500.11815/1683
dc.description Publisher's version (útgefin grein)
dc.description.abstract We study the transport properties of a wire-dot system coupled to a cavity and a photon reservoir. The system is considered to be microstructured from a two-dimensional electron gas in a GaAs heterostructure. The 3D photon cavity is active in the far-infrared or the terahertz regime. Tuning the photon energy, Rabi-resonant states emerge and in turn resonant current peaks are observed. We demonstrate the effects of the cavity–photon reservoir coupling, the mean photon number in the reservoir, the electron–photon coupling and the photon polarization on the intraband transitions occurring between the Rabi-resonant states, and on the corresponding resonant current peaks. The Rabi-splitting can be controlled by the photon polarization and the electron–photon coupling strength. In the selected range of the parameters, the electron–photon coupling and the cavity-environment coupling strengths, we observe the results of the Purcell effect enhancing the current peaks through the cavity by increasing the cavity–reservoir coupling, while they decrease with increasing electron–photon coupling. In addition, the resonant current peaks are also sensitive to the mean number of photons in the reservoir.
dc.description.sponsorship This work was financially supported by the Research Fund of the University of Iceland, the Icelandic Research Fund, grant No. 163082-051, and the Icelandic Infrastructure Fund.
dc.format.extent 1023
dc.language.iso en
dc.publisher MDPI AG
dc.relation.ispartofseries Nanomaterials;9(7)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Cavity-quantum electrodynamics
dc.subject Electro-optical effects
dc.subject Quantum dot
dc.subject Quantum master equation
dc.subject Quantum transport
dc.subject Skammtafræði
dc.subject Rafsegulfræði
dc.title Manifestation of the Purcell Effect in Current Transport through a Dot–Cavity–QED System
dc.type info:eu-repo/semantics/article
dcterms.license This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
dc.description.version Peer Reviewed
dc.identifier.journal Nanomaterials
dc.identifier.doi 10.3390/nano9071023
dc.relation.url https://www.mdpi.com/2079-4991/9/7/1023/pdf
dc.contributor.department Raunvísindastofnun (HÍ)
dc.contributor.department Science Institute (UI)
dc.contributor.school Verkfræði- og náttúruvísindasvið (HÍ)
dc.contributor.school School of Engineering and Natural Sciences (UI)
dc.contributor.school School of Science and Engineering (RU)
dc.contributor.school Tækni- og verkfræðideild (HR)

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