Two-electron states in symmetric and asymmetric double quantum dots in a magnetic field

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Abstract

We studied, theoretically, the two-electron energy levels for double quantum dots, both symmetric and asymmetric, in the presence of a homogeneous magnetic field. Within the effective-mass approach, we expanded the two-electron wave function, in an orthogonal basis formed by the products of each electron wave function in growth direction z, and one-particle solutions of the magnetic Hamiltonian in the x-y plane. We applied our method to the case of AlxGa1-xAs, for which we showed how the wave functions vary, and how the basis functions are mixed in a nontrivial way by the effect of the Coulomb potential.

Original languageEnglish
Pages (from-to)7271-7282
Number of pages12
JournalJournal of Physics Condensed Matter
Volume11
Issue number38
DOIs
StatePublished - 27 Sep 1999
Externally publishedYes

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