title: Nonequilibrium transport in quantum impurity models: exact path integral simulations.
abstract: We simulate the nonequilibrium dynamics of two generic many-body quantum impurity models by employing the recently developed iterative influence-functional path integral method [Phys. Rev. B: Condens. Matter, 2010, 82, 205323]. This general approach is presented here in the context of quantum transport in molecular electronic junctions. Models of particular interest include the single impurity Anderson model and the related spinless two-state Anderson dot. In both cases we study the time evolution of the dot occupation and the current characteristics at finite temperature. A comparison to mean-field results is presented, when applicable.
authors.affiliation: Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada.
authors.forename: Dvira
authors.initials: D
authors.lastname: Segal
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Millis
authors.forename: David R
authors.initials: DR
authors.lastname: Reichman