Ensemble properties in quantum steady-state nonequilibrium theories
Abstract
Ensemble properties of nonequilibrium theories for quantum steady-state processes, introduced by Caroli et al. and Feuchtwang, are investigated. Starting from an uncoupled state of separate grand-canonical ensembles of two leads and a microcanonical ensemble of an isolated intermediate region, it is shown rigorously how these formalisms lead to the correct coupled state of a joint ensemble whose physical properties cease to depend on the initial occupation number of the intermediate region.
- Publication:
-
Physical Review B
- Pub Date:
- May 1998
- DOI:
- 10.1103/PhysRevB.57.11862
- Bibcode:
- 1998PhRvB..5711862H
- Keywords:
-
- 73.40.Gk;
- 72.10.Bg;
- 71.10.-w;
- 73.23.-b;
- Tunneling;
- General formulation of transport theory;
- Theories and models of many-electron systems;
- Electronic transport in mesoscopic systems