Issue 32, 2011

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.

Graphical abstract: Nonequilibrium transport in quantum impurity models: exact path integral simulations

Article information

Article type
Paper
Submitted
09 Mar 2011
Accepted
18 May 2011
First published
15 Jun 2011

Phys. Chem. Chem. Phys., 2011,13, 14378-14386

Nonequilibrium transport in quantum impurity models: exact path integral simulations

D. Segal, A. J. Millis and D. R. Reichman, Phys. Chem. Chem. Phys., 2011, 13, 14378 DOI: 10.1039/C1CP20702D

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