  Electron tunneling through a double quantum dot molecule, in the Kondo
regime, under the effect of a magnetic field and an applied voltage, is
studied. This system possesses a complex response to the applied fields
characterized by a tristable solution for the conductance. The different nature
of the solutions are studied in and out thermodynamical equilibrium. It is
shown that the interdot coupling and the fields can be used to control the
region of multistability. The mean-field slave-boson formalism is used to
obtain the solution of the problem.
