  The energy levels of two interacting electrons in a 2D quantum dot confined
by a finite Gaussian potential and subjected to a uniform magnetic field
perpendicular to the plane of the dot are studied. Analytic results are
obtained for the energy spectrum of the two-electron system as well as for a
single electron. The magnetic field at which the ground state transitions from
the spin-singlet to the spin-triplet state for the two-electron system is
calculated and compared with the experimental data and previous theoretical
results for the infinite harmonic confining potential. The ground state energy
of the two-electron system as a function of the magnetic field is calculated
and compared with the experimental data.
