F. Vera et Z. Barticevic, Two-electron states in symmetric and asymmetric double quantum dots in a magnetic field, J PHYS-COND, 11(38), 1999, pp. 7271-7282
We studied, theoretically, the two-electron energy levels for double quantu
m dots, both symmetric and asymmetric, in the presence of a homogeneous mag
netic field. Within the effective-mass approach, we expanded the two-electr
on wave function, in an orthogonal basis formed by the products of each ele
ctron wave function in growth direction z, and one-particle solutions of th
e 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.