Nonequilibrium transport in quantum impurity models: the Bethe ansatz for open systems
We develop an exact nonperturbative 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. Introd...
Saved in:
| Published in | Physical review letters Vol. 96; no. 21; p. 216802 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
02.06.2006
|
| Online Access | Get more information |
Cover
Loading…
| Summary: | We develop an exact nonperturbative 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--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. |
|---|---|
| ISSN: | 0031-9007 |
| DOI: | 10.1103/PhysRevLett.96.216802 |