  We present unrestricted Hartree Fock method coupled with configuration
interaction (CI) method (URHF-CI) suitable for the calculation of ground and
excited states of large number of electrons localized by complex gate
potentials in quasi-two-dimensional quantum dot molecules. The method employs
real space finite difference method, incorporating strong magnetic field, for
the calculating of single particle states. The Hartree-Fock method is employed
for the calculation of direct and exchange interaction contribution to the
ground state energy. The effects of correlations are included in energies and
directly in the many-particle wavefunctions via configuration interaction (CI)
method using a limited set of excitations above the Fermi level. The URHF-CI
method and its performance are illustrated on the example of ten electrons
confined in a two-dimensional quantum dot molecule.
