Influence of shape of quantum dots on their far-infrared absorption

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dc.creatorMagnusdottir, Ingibjorg
dc.creatorGudmundsson, Vidar
dc.date1999-07-15
dc.date.accessioned2026-07-07T03:13:54Z
dc.date.available2026-07-07T03:13:54Z
dc.descriptionWe investigate the effects of the shape of quantum dots on their far-infrared absorption in an external magnetic field by a model calculation. We focus our attention on dots with a parabolic confinement potential deviating from the common circular symmetry, and dots having circular doughnut shape. For a confinement where the generalized Kohn theorem does not hold we are able to interprete the results in terms of a mixture of a center-of-mass mode and collective modes reflecting an excitation of relative motion of the electrons. The calculations are performed within the time-dependent Hartree approximation and the results are compared to available experimental results.
dc.descriptionRevTeX, 16 pages with 10 postscript figures included. Submitted to Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/cond-mat/9907216
dc.identifierhttp://arxiv.org/abs/cond-mat/9907216
dc.identifierPhys. Rev. B 60, 16591 (1999)
dc.identifierdoi:10.1103/PhysRevB.60.16591
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/29481
dc.subjectMesoscale and Nanoscale Physics
dc.titleInfluence of shape of quantum dots on their far-infrared absorption
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