title: Imaginary-time formulation of steady-state nonequilibrium: application to strongly correlated transport.
abstract: We extend the imaginary-time formulation of the equilibrium quantum many-body theory to steady-state nonequilibrium with an application to strongly correlated transport. By introducing the Matsubara voltage, we maintain the finite chemical potential shifts in the Fermi-Dirac function, in agreement with the Keldysh formulation. The formulation is applied to strongly correlated transport in the Kondo regime using the quantum Monte Carlo method.
authors.affiliation: Department of Physics, State University of New York at Buffalo, Buffalo, New York 14260, USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Han
authors.forename: R J
authors.initials: RJ
authors.lastname: Heary