Regensburg 2013 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 70: Correlated Electrons: General Theory 2

TT 70.2: Vortrag

Freitag, 15. März 2013, 09:45–10:00, H24

Steady-State Nonequilibrium Dynamical Mean Field Theory: an auxiliary Master Equation approach — •Enrico Arrigoni, Michael Knap, and Wolfgang von der Linden — Institute of Theoretical and Computational Physics TU Graz, 8045 Graz, Austria

We present an approach to deal with nonequilibrium steady state properties of strongly correlated quantum many-body systems based on dynamical mean-field theory (DMFT). The impurity solver is based on the exact solution of an auxiliary system consisting of a finite number of bath sites coupled to the interacting impurity and to two Markovian reservoirs. The method can be seen as the extension of the DMFT impurity solver for the nonequilibrium case based on exact diagonalisation. We apply the method to study nonlinear quantum transport across correlated heterostructures.