Imaginary-Time Formulation of Steady-State Nonequilibrium: Application to Strongly Correlated Transport
Year: 2007
Type: article
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.
Source: Physical Review Letters
Authors: J. E. Han, R. J. Heary
Institution: University at Buffalo, State University of New York
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1968620280