Steady-state nonequilibrium density of States of driven strongly correlated lattice models in infinite dimensions.

@article{Joura2008SteadystateND,
  title={Steady-state nonequilibrium density of States of driven strongly correlated lattice models in infinite dimensions.},
  author={Alexander V. Joura and James K. Freericks and Thomas Pruschke},
  journal={Physical review letters},
  year={2008},
  volume={101 19},
  pages={
          196401
        }
}
An exact formalism for calculating the retarded and advanced Green's functions of strongly correlated lattice models in a uniform electric field is derived within dynamical mean-field theory. To illustrate the method, we solve for the nonequilibrium density of states of the Hubbard model in both the metallic and Mott-insulating phases at half-filling (with an arbitrary strength electric field) by employing the approximate numerical renormalization group as the impurity solver. This general… Expand

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