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Far-infrared spectra of lateral quantum dot molecules

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Helle, M.
dc.contributor.author Harju, A.
dc.contributor.author Nieminen, Risto M.
dc.date.accessioned 2015-09-04T10:14:51Z
dc.date.available 2015-09-04T10:14:51Z
dc.date.issued 2006
dc.identifier.citation Helle, M. & Harju, A. & Nieminen, Risto M. 2006. Far-infrared spectra of lateral quantum dot molecules. New Journal of Physics. Volume 8, Issue 2. 27/1-18. ISSN 1367-2630 (printed). DOI: 10.1088/1367-2630/8/2/027. en
dc.identifier.issn 1367-2630 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/17610
dc.description.abstract We study effects of electron–electron interactions and confinement potential on the magneto-optical absorption spectrum in the far-infrared (FIR) range of lateral quantum dot molecules (QDMs). We calculate FIR spectra for three different QDM confinement potentials. We use an accurate exact diagonalization technique for two interacting electrons and calculate dipole transitions between two-body levels with perturbation theory. We conclude that the two-electron FIR spectra directly reflect the symmetry of the confinement potential and interactions cause only small shifts in the spectra. These predictions could be tested in experiments with non-parabolic quantum dots (QDs) by changing the number of confined electrons. We also calculate FIR spectra for up to six non-interacting electrons and observe some additional features in the spectrum. en
dc.format.extent 27/1-18
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher IOP Publishing en
dc.relation.ispartofseries New Journal of Physics en
dc.relation.ispartofseries Volume 8, Issue 2
dc.rights © 2006 IOP Publishing. This is the accepted version of the following article: Helle, M. & Harju, A. & Nieminen, Risto M. 2006. Far-infrared spectra of lateral quantum dot molecules. New Journal of Physics. Volume 8, Issue 2. 27/1-18. ISSN 1367-2630 (printed). DOI: 10.1088/1367-2630/8/2/027., which has been published in final form at http://iopscience.iop.org/article/10.1088/1367-2630/8/2/027/meta. en
dc.subject.other Physics en
dc.title Far-infrared spectra of lateral quantum dot molecules en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder IOP Publishing
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.contributor.department Department of Applied Physics en
dc.subject.keyword quantum dots en
dc.subject.keyword far-infrared spectrum en
dc.identifier.urn URN:NBN:fi:aalto-201509034227
dc.type.dcmitype text en
dc.identifier.doi 10.1088/1367-2630/8/2/027
dc.type.version Final published version en


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