Nonequilibrium Transport in Quantum Impurity Models (Bethe-Ansatz for open systems)

Abstract

We develop an exact non-perturbative framework to compute steady-state properties of quantum-impurities subject to a finite bias. We show that the steady-state physics of these systems is captured by nonequilibrium scattering eigenstates which satisfy an appropriate Lippman-Schwinger equation. Introducing a generalization of the equilibrium Bethe-Ansatz - the Nonequilibrium Bethe-Ansatz (NEBA), we explicitly construct the scattering eigenstates for the Interacting Resonance Level model and derive exact, nonperturbative results for the steady-state properties of the system.

4 pages, 1 figure

References in corpus (1)

• Universal aspects of non-equilibrium currents in a quantum dot

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