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Issue 32, 2011
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Nonequilibrium transport in quantum impurity models: exact path integral simulations

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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

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Publication details

The article was received on 09 Mar 2011, accepted on 18 May 2011 and first published on 15 Jun 2011


Article type: Paper
DOI: 10.1039/C1CP20702D
Citation: Phys. Chem. Chem. Phys., 2011,13, 14378-14386

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    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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