Imaginary-time formulation of steady-state nonequilibrium: application to strongly correlated transport

Details Imaginary-time formulation of steady-state nonequilibrium: application to strongly correlated transport Imaginary-time formulation of steady-state nonequilibrium: application to strongly correlated transport

2007-04-24

arxiv.org/abs/0704.3198v2

Phys Rev Lett 99, 236808 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages 3 figures

Scientific paper

10.1103/PhysRevLett.99.236808

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 Matsubara voltage, we keep 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.

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