CORRELATION-EFFECTS ON TRANSPORT THROUGH FEW-ELECTRONS SYSTEMS

We study lateral tunneling through a quantum box including electron-el ectron interactions in the presence of a magnetic field which breaks s ingle particle degeneracies. The conductance at zero temperature as a function of the Fermi energy in the leads consists of a set of peaks r elated to changing by one the electron occupancy in the box. We find t hat the position and heights of the peaks are controlled by many-body effects. We compute the conductance up to 8 electrons for several case s where correlation effects dominate. In the range of intermediate fie lds spin selection rules quench some peaks. At low and high fields the behavior of the conductance as a function of the number of electrons is very different due to big changes in the many-body ground state wav efunctions.