  A Generalized Master Equation (GME) is used to study the thermoelectric
currents through a quantum dot in both the transient and steady-state regime.
The two semi-infinite leads are kept at the same chemical potential but at
different temperatures to produce a thermoelectric current which has a varying
sign depending on the chemical potential. The Coulomb interaction between the
electrons in the sample is included via the exact diagonalization method. We
observe a saw-teeth like profile of the current alternating with plateaus of
almost zero current. Our calculations go beyond the linear response with
respect to the temperature gradient, but are compatible with known results for
the thermopower in the linear response regime.
