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Multipole-based modal analysis of gate-defined quantum dots in graphene

  • S. Mohsen Raeis-ZadehEmail author
  • Safieddin Safavi-Naeini
Regular Article

Abstract

A new numerical method based on the multipoles of the Dirac equation is presented for rigorous and fast analysis of electron scattering from gate-defined structures in graphene. The new method is used to study the strongly bound states and the weakly bound states of a circular quantum dot. The accuracy of the obtained results is then verified by the T-matrix method. Furthermore, we characterize the resonances of elliptical gate-defined quantum dots and compare these resonances with the strongly bound states of circular dots. The effects of coupling between two quantum dots are also investigated.

Keywords

Computational Methods 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • S. Mohsen Raeis-Zadeh
    • 1
    Email author
  • Safieddin Safavi-Naeini
    • 1
  1. 1.CIARS, Department of Electrical and Computer Engineering, University of WaterlooWaterlooCanada

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