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Iterative real-time path integral approach to nonequilibrium quantum transport

Iterative real-time path integral approach to nonequilibrium quantum transport

Speaker: Stephan Weiss, Düsseldorf University

Abstract: We have developed a numerical approach to compute real-time path
integral expressions for quantum transport problems out of equilibrium. The
scheme is based on a deterministic iterative summation of the path integral
for the generating function of the nonequilibrium current. Self-energies due
to the leads, being non- local in time, are taken into account within a
finite memory time, thereby including non-Markovian effects.
The method is applied to nonequilibrium transport through an Anderson dot.