Abstract:We consider a model of interacting spinless fermions coupled to non-interacting leads.
Initially a non-equilibrium situation is imposed by applying a bias voltage and temper-
ature gradient across the system. The time-evolution of the density matrix leads to a
quasi-stationary state from which charge and energy currents can be extracted. Numeri-
cal results based on the time-dependent Hartree-Fock approximation are compared with
exact currents obtained from discrete Hubbard-Stratonovich decoupling of the inter… Show more
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